the general solution to
Sin2x = Cosx+l

Answers

Answer 1

Answer:

Step-by-step explanation:

sin2x = cosx + l

This can be written as:

2 sinxcosx = cosx + 1

One way would be to draw graphs of sin2x and cosx + 1 and see where they intersect.

Another way is to use y = tan(x/2),  then sinx = 2y/(y^2+1) and cos x

= (-y^2 + 1) / (y^2 + 1) to substitute into the given equation and solve for y.

The algebra will be pretty challenging in this method.


Related Questions

Eight less than the product of six and the difference of a number and two is twice the number. What is the number?

Answers

If 8 less than the product of 6 and the difference of a number and 2 is twice the number, then the number is 5.

As per the question statement, 8 less than the product of 6 and the difference of a number and 2 is twice the number.

We are required to calculate the number.

To solve this question, let us assume that our concerned number is "x". Now, we will form a linear equation of single variable, based on the conditions mentioned in the question statement, and solving for "x", we will obtain our desired answer.

[tex][6(x-2)-8]=2x\\or, 6x-12-8=2x\\or,6x-(12+8)=2x\\or,6x-20=2x\\or,6x-2x=20\\or, 4x=20\\or, x=\frac{20}{4} =5[/tex]

Product: In mathematics, a product is the result of multiplication of two or more numbers or factors.Linear Equation: A linear equation is an algebraic equation when graphed, always results in a straight line and each term has an exponent of 1.

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let U = {1,2,3,4,5,6,7,8,9}, A = {1,2,3,4,5,6}, B = {2,4,5,6}, And C = {1,6,7}. find

Answers

Given;

U = {1,2,3,4,5,6,7,8,9},

A = {1,2,3,4,5,6},

B = {2,4,5,6},

C = {1,6,7}.

To find;

A∩B, A∪C, (AUB)∩(A∪C), A'∩B', (A∩C)', A∪C, A∩(B∪C), A', A'∪B', A-B, A∪B, A∪(B∪C), B', (AUB)', B-C

A∩B = {2,4,5,6,}

A∪C = {1,2,3,4,5,6,7}

(AUB)∩(A∪C) = {1,2,3,4,5,6}

A'∩B' ={7,8,9}

(A∩C)' =  {2,3,4,5,7,8,9}

A∪C = {1,2,3,4,5,6,7}

A∩(B∪C) = {1,2,4,5,6}

A' = {7,8,9}

A'∪B' = {1,3,7,8,9}

A-B = {2,4,5,6}

A∪B = {1,2,3,4,5,6}

A∪(B∪C) = {1,2,3,4,5,6,7}

B' = {1,3,7,8,9}

(AUB)' = {7,8,9}

B-C = {6}

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Beth walk two blocks in 15 minutes how many blocks or bad word if she walked at the same rate for an hour

Answers

The answer for this given question is 8 blocks

Algebra is the branch of mathematics that helps in the representation of problems or situations in the form of mathematical expressions. It involves variables like x, y, z, and mathematical operations like addition, subtraction, multiplication, and division to form a meaningful mathematical expression.

basic rules of algebra

Commutative Rule of Addition.

Commutative Rule of Multiplication.

Associative Rule of Addition.

Associative Rule of Multiplication.

Distributive Rule of Multiplication.

15*4= 60, meaning a full hour.

15 minutes = 2 blocks

15 minutes = 2 blocks

15 minutes = 2 blocks

15 minutes = 2 blocks

add them all up and we get that in 60 minutes (an hour) Beth walked 8 blocks.

Hence, Beth walked 8 blocks in 60 minutes of time.

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Since 9.2 is greater that 9 what is the result of 10 - 9.2

Answers

With algebraic operations, the value becomes 0.8.

According to the statement

We have to find that the value of the statement.

So, For this purpose, we know that the

Algebraic operation is any combination of a finite number of the operations of addition, multiplication, subtraction, and division.

And the The four basic algebraic operations are addition, subtraction, multiplication and division.

From the given information:

The result of 10 - 9.2

Then

10 - 9.2

Here we add to subtract the given terms

Then after subtracting the terms the value of the statement become

0.8

Then with the help of the algebraic operation the value becomes 0.8.

So, With algebraic operations, the value becomes 0.8.

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Find the distance between ( -3,4) and (2,-4)

Answers

Answer: exact form: √89   decimal form: 9.43398113…

Step-by-step explanation:

the distance between (-3,4) and (2,-4) is

exact form: √89   decimal form: 9.43398113…

help for brainliest please

Answers

Answer:

5/9

Step-by-step explanation:

When you divide 5 by 9, you will get 0.5 repeating. I know the answer because I had this question on Acellus.

Given the definitions of f(x) and g(x) below, find the value of (fog)(-3).
f(x) = 3x² - 7x-3
g(x) = -4x - 10

Answers

The value of the composite function (f o g)(3) is 1603

How to evaluate the composite function?

The functions are given as

f(x) = 3x² - 7x - 3

g(x) = -4x - 10

Next, calculate (f o g)(x) using

(f o g)(x) = f(g(x))

So, we have

(f o g)(x) = 3(-4x - 10)² - 7(-4x - 10) - 3

Substitute 3 for x.

So, we have

(f o g)(3) = 3(-4 x 3 - 10)² - 7(-4 x 3 - 10) - 3

Evaluate

(f o g)(3) = 1603

Hence, the value of the composite function (f o g)(3) is 1603

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You are solving a measurement problem where the numbers 2.058 × 109 and 3.0571 × 10−4 are divided. How many significant digits should the quotient have?

Answers

The number of significant digits is 4

What is quotient?

Quotient can be defined as the number that results from the division of a number by another number.

Example;

The quotient of 4 and 2 is expressed as;

= 4/ 2

= 2

From the information given, we have the numbers as;

2.058 × 10^93.0571 × 10^−4

To determine the quotient, we have;

= 2.058 × 10^9/ 3.0571 × 10^−4

= 6. 731 × 10^12

The number of significant digits is 4

Thus, the number of significant digits is 4

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34/75 divided by 51/100

Answers

[tex]\cfrac{34}{75}\div \cfrac{51}{100}\implies \cfrac{34}{75}\cdot \cfrac{100}{51}\implies \cfrac{34}{51}\cdot \cfrac{100}{75}\implies \cfrac{2}{3}\cdot \cfrac{4}{3}\implies \cfrac{8}{9}[/tex]

a. The cardinal number of {213, 214, 215, 216, ..., 912) is

Answers

Answer:

Step-by-step explanation:

a=213

l=912

let cardinal number=n

let c.d.=d

d=214-213=1

l=a+(n-1)d

912=213+(n-1)1

912=213+n-1

912-212=n

n=700

cardinal number=700

7^x^2=7^3X+10 SOLVE FOR X

Answers

Answer:

x= -0.9

Step-by-step explanation:

Assuming you did a typo by saying 7 to the power of x that's also to the power of 2.

This is the answer for 7x^2 = 7x^3+10

16. Write the inequality that is shown on the graph.

Answers

Answer: 5<x<9

Step-by-step explanation:

Graph is from 5 to 9, not including 5 and 9. Let's say x is all the values from 5 to 9, not including 5 and 9.

So, answer is 5<x<9

5. Find the product: 26.4 x 0.15
A. 2.64
B. 3.96
C. 26.4
D. 29.6

please explain in number form and as little as possible but still explaining.​

Answers

Answer:

B. 3.96

Step-by-step explanation:

use a calculator to solve the answer unless it's a sentence

What is the equation of the line? will mark u brainliest

Answers

Answer:

Consider points (1, 0) and (2, 2)

[tex]{ \tt{y = mx + c}} \\ [/tex]

m is the slope

[tex]{ \tt{m = \frac{2 - 0}{2 - 1} = 2 }} \\ [/tex]

Therefore

[tex]{ \tt{y = 2x + c}}[/tex]

consider point (1, 0);

[tex]{ \tt{0 = (2 \times 1) + c}} \\ { \tt{c = - 2}}[/tex]

Equation of line is;

[tex]{ \tt{y = 2x - 2}}[/tex]

A 3-gallon bottle of bleach costs $19.56. What is the price per quart?

Answers

The price per quart is 0.40 dollars

Given that A 3-gallon bottle of bleach costs $19.56 and asked to find out the price per quart.

There are 16 quarts for a gallon

For a 3-gallon bottle, price is 19.56 dollars

For a one-gallon bottle, the price is [tex]\frac{19.56}{3}[/tex] dollars.

⇒The price of the one-gallon bottle is 6.52 dollars.

The price of 16 quarts is 6.52 dollars.

The price of one quart is [tex]\frac{6.52}{16}[/tex]

The price of one quart is 0.40 dollars.

Therefore,the price of the one quart is 0.40  dollars.

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What’s the correct answer answer asap for brainlist

Answers

A. sounds the most correct

Answer:The answer is a.

Step-by-step explanation:I hope this helps.

A circular arc has a measure of 2in and is intercepted by a central angle of 34. Find the radius of the circle

Answers

Answer:

68

Step-by-step explanation:

Answer:

For this particular problem (with units in mind), the formula for arc length is

Arc length

=

2

π

r

(

x

360

)

,

Where

x

is the central angle measure and

r

is the radius of the circle.

You don't really have to work too hard to remember this formula. The arc length formula is easy to remember because it is just the circumference of the circle times the central angle over

360

.

Anyway, let's continue with the problem. We are given that the central angle is

60

, and that

r

, our radius, is

9

feet. So, let's plug that into our equation to find the arc length, in feet:

Arc length

=

2

π

r

(

x

360

)

Arc length

=

2

π

(

9

)

(

60

360

)

Now, you might be tempted to plug this in your calculator, but let's simplify it a little bit more.

Arc length

=

2

π

(

9

)

(

60

360

)

Arc length

=

18

π

(

1

6

)

Arc length

=

3

π

feet

So, if you wanted an exact answer, it would be that the arc length is

3

π

feet

. If you wanted an approximate answer, then you can type

3

times

π

in your calculator to get a value of about

9.425

feet

as you alternative answer.

Step-by-step explanation:

SA school has 900 concert tickets for sale. Some of them are for reserved seats (x) and the
rest are for general admission (y). No more than 600 reserved seat tickets can be sold. They
know they will sell at least 200 general admission tickets. Write a system of inequalities that
shows how many of each type of ticket can be sold and then graph the feasible region.

Answers

Answer:

x ≤ 600y ≥ 200x +y ≤ 900see the attachment for a graph

Step-by-step explanation:

Given 900 tickets for sale and restrictions on the numbers of reserved and general admission seats, you want a system of inequalities that models the possible sales. You also want a graph of the feasible region.

The variables are defined as ...

x = number of reserved seat ticketsy = number of general admission tickets

Inequalities

The limits give rise to these inequalities:

  x ≤ 600 . . . . . no more than 600 reserved seats can be sold

  y ≥ 200 . . . . . at least 200 general admission tickets will be sold

  x + y ≤ 900 . . . . at most, 900 tickets can be sold

Graph

These inequalities can be graphed simply by giving them as input to a graphing calculator. The result is attached. The feasible region is that area of the graph where the three solution spaces overlap. Here, it is outlined in black.

2(5/2x+8)=20x-14
Solve for x

Answers

Answer:

x=2

Step-by-step explanation:

The two beakers below contain pure water.



Which of the following properties is the same for both of these samples?

A
Mass

B
Weight

C
Volume

D
Boiling Point

Answers

D boiling point because it’s now showing us how much is in the beaker and if it does show that we can’t determine mass weight volume But what we can determine is boiling point

(BRAINLIESTING ANYONE WHO SOLVES THIS AND POSTS AN IMAGE OF SOLVED QUESTION)

Answers

Red and green lines are Parallel lines. and black line is perpendicular to the blue line.

How are parallel straight lines related?

Parallel lines have the same slope since the slope is like a measure of steepness and since parallel lines are of the same steepness, thus, are of the same slope.

Since the parallel line has equation y = 2x + 2, thus its slope is 2 and thus, the slope of the needed line is 2 too.

In the given figure, we have a set of lines which are parallel and perpendicular to each others.

We know that Parallel lines are lies in the same plane which when extended do not meet and are always same distance apart from each other.

The Perpendicular lines are two non-vertical lines in the same plane that intersect at right angles.

From the figure given,

Red and green lines are Parallel lines. and black line is perpendicular to the blue line.

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3
bec
At the end of the mini-golf game Heather was 2 over par, Alphonso was 3 under par,
Jackie was par, Wanda was I under par, and Trevor was 4 over par. Write an integer to
represent each of their golf scores. Then order the golfers from 1st to 5th place.
(Remember that the LOWEST score in golf wins!)

Answers

the order of golfers from 1st to 5 th is Trevor, Heather, Wanda, Jackie and Alphonso.

we are given that:

at the end of amini golf match,

Heather was 2 over par

So, Heather = 2

Alphonso was 3 under par

Alphonso = - 3

Jackie was par

Jackie = 0

Wanda was I under pa

Wanda = 1

Trevor was 4 over par.

Trevor = 4

Now arranging the integers from 1st to 5th place,

Trevor = 4 is 1st

Heather = 2 is 2 nd

Wanda = 1 is 3rd

Jackie = 0 is 4th

and Alphonso = - 3 is 5th

Therefore, the order of golfers from 1st to 5 th is Trevor, Heather, Wanda, Jackie and Alphonso.

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Write and solve a subtraction word problem using the numbers 34,508 and 8,529

Answers

Answer:

Jack and Jill look at all their savings, Jack has £34,508 and Jill has £8,529. How much more does Jack have than Jill?

Step-by-step explanation:

34,508 - 8529 = 25979

Answer:

lay lay and jay went to the store and bout some candy they had 34,508 dollers and spent 8,529 dollers how much money do they have left

Step-by-step explanation:

hey did i help pls mark brainliest

Points P and S are located the same distance from 0 on the
number line shown.

Answers

The expression which has a negative value according to the number line drawn in the task content where points P and S are as given is; Choice D; P + 1.

Which expression has a negative value according to the number line drawn in the task content?

It follows from the task content that the expression which has a negative value among the given answer choices is to be identified.

As evident in the number line, the number S is greater than 1, and hence, is a positive number.

Also, the number P is less than -1 and hence, is a negative number.

Since, the task content requires that the expression with negative value be identified, it follows that the required expression is; Choice D.

This follows from the fact that, hypothetically, the value of P is -1.8, hence; P + 1 = -1.8 + 1

= -0.8

Ultimately, The expression which has a negative value according to the number line drawn in the task content where points P and S are as given is; Choice D; P + 1.

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What Is the term -3x and 5x combined to?

Answers

Answer:

Step-by-step explanation:

2x

(1/4+3/4)x____=82. I need help llz

Answers

82 because one and then 82

Which point represents the ordered pair ( 1/4, -1/2)?

Answers

x = 0.25 , y= -0.5 , (x, y) represents the point (0.25,-0.5) in fourth quadrant of the cartesian plane as shown in the graph below attached.

What are cartesian coordinates in two dimensions ?

A Cartesian coordinate system in two dimensional is defined by x and y axes. Any point in the  coordinate system is defined by a perpendicular distance from  the x and y axes, (x, y). x and y  axes intersect at the point where the value of  x and y both is zero; this is called the origin (0,0)

Given ordered pair is ( 1/4, -1/2)

put (x,y) = ( 1/4, -1/2)

x= 1/4 =0.25  and y =(-1/2) = -0.5

This point lie in 4th quadrant

The point in the attached file represents  the given point.

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Olivia is trying to get her friends to go swimming. She says it is 959595 degrees to convince them, but she rounded the temperature to the nearest one.
Which could be the temperature before Olivia rounded it? PLEASE ANSWER QUICKLY!!!

Answers

Answer:

t > 94.5

Step-by-step explanation:

Compare 4/5, 8/10, and 12/15 using ratios

Answers

On simplifying the equation this show that the ratio are equal:

4/5 = 4/5 = 4/5 .

What is the relationship between two ratios?

To obtain the comparative ratio, find the LCM of both the consequents of both ratios, divide the LCM with both the consequents and then multiply the numerator and denominator of both ratios with the answer.

What does the ratio formula mean?

The ratio is a relationship between the amounts of two or more things that indicates how much of one is contained in the other. The ratio formula can be used to convert a ratio into a fraction. a:b = a/b is the ratio formula for just about any two quantities, say a and b.

According to the given data:

4/5, 8/10, and 12/15

dividing the ration to simplify it:

4/5, 8/10, and 12/15

8/10 = 4/5 on dividing by 2

12/15 = 4/5 on dividing by 3

So,

On simplifying the equation this show that the ratio are equal:

4/5, 8/10, and 12/15

4/5 = 4/5 = 4/5 .

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A 100kg bag of granulated sugar is to
be put into smaller polythene (nylon)
bags each containing 250g. How
many polythene bags will needed?

Answers

100 kg = 100000 g

∴ bags needed = [tex]\frac{100000}{250}[/tex] = 400

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