All categories

3 years ago

Use basic identities to simplify the expression. cos θ - cos θ sin2θ

2 answers:

7 0

Cos Ф - cos Ф.sin² Ф

sin² Ф = 1 - cos² Ф
cos Ф - cos Ф( 1-cos² Ф) = cos Ф - cos Ф - cos³ Ф = cos³ Ф

cos Ф - cos Ф.sin² Ф = cos³ Ф

Leviafan [203]3 years ago

5 0

Answer:

answer is cos ^3 0

Step-by-step explanation:

You might be interested in

This table gives a few (x,y)(x,y)left parenthesis, x, comma, y, right parenthesis pairs of a line in the coordinate plane. -28 -

Serhud [2]

Answer:

The y-intercept is y = 2

Step-by-step explanation:

A linear function has the following format:

$y = mx + b$

In which m is the slope and b is the y-intercept, which is the value of y when x = 0.

We are given these three points:

(-28, -54)

(-21, -40)

(-14, -26)

We use two of them to build a system, to find values for m and b.

(-28, -54)

This means that when $x = -28, y = -54$

$y = mx + b$

$-54 = -28m + b$

$28m = b + 54$

$m = \frac{b + 54}{28}$

(-21, -40)

This means that when $x = -21, y = -40$

$y = mx + b$

$-40 = -21m + b$

$-40 = -21\frac{b + 54}{28} + b$

$-40 = \frac{-21b - 1134 + 28b}{28}$

$7b - 1134 = -40*28$

$7b = 14$

$b = \frac{14}{7}$

$b = 2$

The y-intercept is y = 2

7 0

3 years ago

Im new please help.someone

sesenic [268]

Answer: 45

Step-by-step explanation:

The rectangle is: 7 * 5

The triangle is: (4 * 5)/2

7 * 5 = 35

4 * 5 = 20

20/2 = 10

10 + 35 = 45

3 0

4 years ago

Can somebody simply explain a unlinear functions???

sertanlavr [38]

Answer Algebraically, linear functions are polynomials with highest exponent equal to 1 or of the form y = c where c is constant. Nonlinear functions are all other functions. An example of a nonlinear function is y = x^2. This is nonlinear because, although it is a polynomial, its highest exponent is 2, not 1.

3 0

3 years ago

Read 2 more answers

How to solve the problems that 4x=36

katrin2010 [14]

Answer:

Step-by-step explanation:

here you go 36÷4=9 or 4x9=36

4 0

4 years ago

Read 2 more answers

slope intercept form of equation of a line that passes through (-3,8) y=-2/3x+6 what is the point slope equation for this line??