How to Differentiate { sin 3xcos4x dx: Integration Question

[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 ?

 

[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.

 

[HallsofIvy]

"Fundamental Theorem of Calculus"!

(Why is this in the differential equations section?)

 

[aun raza]

multiply and divide by 2