Develop the argument:(adsbygoogle = window.adsbygoogle || []).push({});

Integral cos(3x)cos(2x)dx , with out using integral tables.

I know,

cos (A+B) = cosA.cosB-sinA.sinB

Any ideas:

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Develop the argument:

**Physics Forums | Science Articles, Homework Help, Discussion**