# Math Help - Differentiate

1. ## Differentiate

i. y=(x+1)1n( x2+1)
ii. xy=30

Help to evaluate
i. ∫ a 4xdx

2. Originally Posted by fredmlay
i. y=(x+1)1n( x2+1)
Is the "1" after the first parentheses meant to be an exponent? Is the "n" before the second parentheses meant to be a constant?

What have you tried? How far have you gotten?

Originally Posted by fredmlay
ii. xy=30
One way to start might be to solve for "y=", giving you y = 30/x = 30x^(-1). Then use the Power Rule.

Originally Posted by fredmlay
Help to evaluate
i. ∫ a 4xdx
Is the "a" just a constant? If so, take it out front, along with the 4, and integrate x = x^1, using the Power Rule.

If you get stuck, please reply showing how far you have gotten. Thank you!