1. ## differentiating 3 functions

Hi, is it possible to differentiate;

-(1/3)ln|secx|.exp(x).sinx??

do we go about doing this the same way as normal differentiation for example;
first differentiate ln|secx| only and so on......?

2. Use the product rule.

The product is
$-\frac{1}{3}\ln |\sec x| \cdot e^x \sin x$.

Then, to differentiate $$e^x \sin x$$ use the product rule again.

3. Originally Posted by mathsShOck
Hi, is it possible to differentiate;

-(1/3)ln|secx|.exp(x).sinx??

do we go about doing this the same way as normal differentiation for example;
first differentiate ln|secx| only and so on......?

yes, it can be differentiated. use the product rule for three functions.

$\frac d{dx}[fgh] = f'gh + fg'h + fgh'$

where $f,g, \text{ and }h$ are functions of $x$

4. Thank you people I got it now.