# Question on integration

1. Jan 23, 2005

### Sanosuke Sagara

I want to ask how to differentiate { sin 3xcos4x dx

Assume { as the integration simbol .Do I need to use the trigonometri function ?

2. Jan 23, 2005

### dextercioby

Lemme get it straight
U want to differentiate wrt "x" the following
$$\int \sin 3x \cos 4x \ dx$$

What the connection between differentiation and integration...??

Daniel.

3. Jan 23, 2005

### HallsofIvy

Staff Emeritus
"Fundamental Theorem of Calculus"!

(Why is this in the differential equations section?)

4. Jul 20, 2009

### aun raza

multiply and divide by 2