Cos30 = sin(90 - 60) = √3/2, because cos and sin are complements
cos120 = cos(180 - 60) = -cos60 = -1/2
Answer:
See below (I hope this helps!)
Step-by-step explanation:
When dividing exponential terms of the same base, we can simply subtract the exponents, therefore:

Yes you are correct it is a transformation and then a rotation
the distance between 16 and -25 is 41
(x² + 16)(x² - 16)
= (x²)² - 16²
= x⁴ - 256