posted this last night but still need some help.

antidifferentiation of

sin^2xcos^2x dx

does this become

1/3sinx^3 - 1/2sinx^4 + 1/5sinx^5 + C

if so can this be simplified??

secondly

antidifferentiation of

sin3xcos4x dx

is this

1/2cosx - 1/14cos7x + C

also if this is true can it be simplified