Stuck on logarithmic differention, after taking the natural log of each side:

1. dy/dx for y=[(x)squareroot(2x+7)] / [x-2]^3

2. Y=ln[(squareroot(x^2+3))/(x^4)]

3. Evaluate the Integral(antiderivative) : [2x-1]/[x-1]dx

Need Help on these, final tomorrow. Thanks.