please solve this with solution so that i will have a guide

l. Evaluate the following: 1.) if f(x) cos2x 4xsinx, 2.) if f(x) = sinx + 4 cosx , 3.) if f(x) = In x, find f(2)+f(3) find a.) 350 b.) f (5 c.) f (-4) find c.)f( 32 +52) l. Evaluate the following: 1.) if f(x) cos2x 4xsinx, 2.) if f(x) = sinx + 4 cosx , 3.) if f(x) = In x, find f(2)+f(3) find a.) 350 b.) f (5 c.) f (-4) find c.)f( 32 +52)