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3 years ago

8

Plz answer my question

2 answers:

allochka39001 [22]3 years ago

7 0

What is the question??

baherus [9]3 years ago

6 0

Whats your question?plz complete your question

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Is this answer correct?

34kurt

Answer:

Step-by-step explanation:

yes the answer is correct

7 0

3 years ago

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Arrange the steps in the correct order to express cos3x in terms of cosx cos(2x)cos(x)-sin(2x)(x) [1-sin^2(x)]cos(x)-[2sin(x)cos

noname [10]

cos(3x) = cos(2x+x)

= cos(2x) cos (x) -sin(2x)sin(x)

$=(1-2sin^2(x)) cos(x)-(2 sin(x) cos(x)) sin(x)$

$= cos x -2sin^2(x) cos(x) -2sin^2(x) cos(x)$

$= cos(x) - 4 sin^2(x) cos(x)$

$cos(x)(1-4sin^2(x))$

$=cos(x(1-4(1-cos^2(x))$

$=cos(x)(1-4+4cos^2(x))$

$= cos(x)-4cos(x)+4cos^3(x)$

$=-3cos(x)+4cos^3(x)$

4 0

4 years ago

The price of an item has risen to $301 today. Yesterday it was $140 Find the percentage increase.

Ludmilka [50]

Answer: 115%

Step-by-step explanation: ur welcome

7 0

3 years ago

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What is the solution set of the equation 6/m +2= m+3/m−1 ?

laiz [17]

Answer:

m = (-3, 2) x = (-1)

Step-by-step explanation:

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5 0

3 years ago

Question 5 (1 point)

aleksley [76]

Answer:

A = x^2 + 5x - 14

Step-by-step explanation:

A = L × W

A = (x+7) × (x-2)

A = x^2 + 7x - 2x - 14

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3 years ago