Question

sin6x cos5x dx]
\limits^a_b {x} \, dx [/tex]

Answer 1

looks like the problem is  integration of  Sin 6x Cos 5x

f(x) =  Sin 6x Cos 5x = 1/2 [ Sin 11 x  + Sin x ]

Integration of f(x) with respect to x gives us 
 
    - 1/22 Cos 11x - 1/2 Cos x + K