A lot of question on some really hard homework I have. Any help would be greatly appreciated. Thanks.

1. int [ (x^2 - 3x + 2) / (x+1) * dx ]

2. int [ x^(1/2) / (x^(1/2) - 3) * dx ]

3. int [ tan 5x * dx ]

___An even problem, is the answer:

___-ln | csc(2x) + cot(2x) | + c

4. int [ sec (x/2) * dx ]

___An even problem, is the answer:

___2*ln | sec(x/2) + tan(x/2) | + c

5. int 2/0 [ (x^2 - 2) / (x + 1) * dx ]

Thanks Again!