Hi everybody

I am having problems with the following:

1. Find dy/dx for y=(arccosh sqrt X)^3x

2. Find integral of (sinhx.cosh2x)dx

Any help will be much appreciated.

Thanks

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- August 11th 2010, 12:51 AMbhavProblems
Hi everybody

I am having problems with the following:

1. Find dy/dx for y=(arccosh sqrt X)^3x

2. Find integral of (sinhx.cosh2x)dx

Any help will be much appreciated.

Thanks - August 11th 2010, 02:29 AMVlasev
Lets start with number 1.

First you need the derivative of .

We start by

Next we take the derivative of both sides to get

(1)

In your case

The derivative of that is

What you now need to do is plug this in in expression (1)