The answer is C) 30 I hope this helped
Double angle identity for sine:


Factorize the left side.

Pythagorean identity:


so that

Answer:
Maybe the answer will be C. P ( A and B )
128 square inches of wrapping paper, since the width would be the Z Axis, That would make a Square 3X4= 12, 12X2= 24. 3X7= 21X4= 104, 104+24=128? That's what I figured. Can you send me a photo of the problem?
I think that date has been changed...but it used to be the deadline to file ur taxes