Evaluate x cos 5x cos 2x

Integrate the function with respect to x
e^2x sin 3x dx

Integrate the function with respect to x
e^3x sin 2x

Evaluate the integral
\(\cfrac { 2x-1 }{ { 2x }^{ 2 }+x+3 } \)

Evaluate the integral
\(\cfrac { 2x-3 }{ \sqrt { 10-7x-{ x }^{ 2 } } } \)