Recall that
Dividing both sides by cosh²(x) gives
Also, recall the identity
Then
I just got this question. I think the answer is 5.
Answer:
∠N = 31
Step-by-step explanation:
MN = MP
∠N = ∠P = x+3
∠M + ∠N + ∠P = 180
4x+6 + x+3 + x+3 = 6x + 12 = 180
x = 28
∠N = 28 + 3 = 31
Answer:
the third one down
Step-by-step explanation: