A hint to get started
Turn a same-angle product into one sine
Find .
CJC · Lecture · Example 14
Use sin 2A=2 sin A cos A with A=3x.
Read the worked solution
A hint to get started
Find ∫sin3xcos3xdx.
CJC · Lecture · Example 14
Use sin 2A=2 sin A cos A with A=3x.