Double angle identity for sine:


Factorize the left side.

Pythagorean identity:


so that

I think it would be $14 per book
Answer:
see explanation
Step-by-step explanation:
Given the translation rule
(x, y ) → (x - 4, y + 2 )
This means subtract 4 from the original x- coordinate and add 2 to the original y- coordinate, that is
a point (4 , - 4 ) → (4 - 4, - 4 + 2 ) → (0, - 2 )
Answer:
3590 per year
Step-by-step explanation: