# Math Help - Reassurance

1. ## Reassurance

Ok i have some homework probs due and I DO NOT WANT YOU TO DO THE WORK FOR ME, i can do it on my own. However, it would be cool if someone could post up the answer so I can double check my work after i finish (i just got them and am going to work on them tonight). I have to show all my work so posting just the answer will only be for my reassurance that i've done the problems correctly. If i get a wrong answer and can't figure it out my error then i'll post up my steps and ask for further assistance.
Thanks

Solve:
1. $\int[(x-1)^2(x^2-2x)]^\frac{1}{2}dx$

2. $\int\frac{dx}{2\sqrt{(3-x)(x+1)}}$

3. $\int[\sqrt{1+(x+1)^2}]^{-1}$

Evaluate:
4. $\sec(\arctan(-\frac{3}{5}))$

5. $\frac{d}{dx}[\ln(x^2+4)-\frac{1}{2}\tan^{-1}(\frac{x}{2})]$

6. $\frac{d}{dt}\sec^{-1}(\csc(2t^2-\ln t))$