Answer:
sina
Step-by-step explanation:
Using the cofunction identity
cos(90 - x) = sinx , then
cos(120 - (30 + a) )
= cos(120 - 30 - a)
= cos(90 - a)
= sina
Answer: I think the answer is 9. GL
Step-by-step explanation:
It's M to the exponent of -3...? It means you multiply M by itself -3 times.
