Answer:
-390 PLEASE GIVE BRAINLIEST
Step-by-step explanation:
y = 310 - 25(28)
y = 310 - 700
y = -390
Evaluate and answer in standard form:
3^-1 = 1/3
You want to end up with . Expand this using the angle sum identity for sine:
We want this to line up with . Right away, we know .
We also need to have
Recall that for all ; this means
Then
So we end up with