# Please Help Me

1. Nov 14, 2007

### poopforfood

Please Help Me!!!!

Hello all I need some serious help with these problems....If you could help me solve them step by step that would be fantastic

Evaluate the following integrals

Integral from 1 to Infinity of 1 / xln(thirdrootx) dx

Integral of sqrt(1-x)/sqrt(x) dx

2. Nov 15, 2007

### AlphaNumeric2

$$\frac{1}{x \ln(x^{\frac{1}{3}})} = \frac{3}{x \ln(x)}$$

This is an exact derivative of a function. Can you work out what it is?

3. Nov 15, 2007

### Gib Z

As for the second one, try letting $x=\sinh^2 t$ =] Its quite nice after that

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