Express cos6θ + cos4θ as a product.

2sin5θsinθ
2cos5θsinθ
2cos5θcosθ
2sin5θcosθ

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

a orange at the grocery store idk what other product that could be

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64