Can someone review answers to Calc 1 assignment?

[pluripotency]

Of course I want and strive for perfect scores on every assignment, but this one is extra important. My grade comes almost entirely from three tests and I screwed up the first one. This is about my only opportunity to make up for that dent, and in addition, the last question on this assignment adds five raw points to test 1.

 

The assignment is 8 questions long and contains mostly chain rule problems. Attached are 5 scans: 2 are Front/Back of the Assignment Sheet while the other 3 are Front/Back and Front of my attempts to solve.

 

This is rather lengthy of a task to ask someone to review, so feel free to see if and where I went wrong on one or two of the problems and leave the rest for the next person. Thanks so much for helping; kudos, karma, rep, User Rating, whatever to anyone and everyone who helps me get these points!

[Greg H.]

#1 looks correct to me.

As for #3 I think you may have made an error in your addition for the final result. You may want to take a look at that again.

 

I'll leave the rest for someone else.

[scienziato]

answer 1 is wrong. the derivative of e^x is e^x and in second answer, the derivative of cscx is -cscxcotx

[Greg H.]

answer 1 is wrong. the derivative of e^x is e^x

 

You're absolutely correct, and I missed that. I had forgotten. Thanks for catching it.

[pluripotency]

After having a conversation with refsmmat I fixed some fundamental understanding and redid the homework. Attached is version two: