here they are, please help me check to see if they're right. thank you
thanks for the reply.
yeah on 2.b, I kinda cut off my substitution of x=tan(ct) (left margin) when I scanned it so it should be fine.
Haha, I found a bubu on my 2.a this morning while in class. I forgot to carry down the 2 (should be 2cos+1 instead of cos+1), but all's well. I fixed it in the last sec.