求不定积分∫(sinx/2)(cosx/2) dx.

问题描述:

求不定积分∫(sinx/2)(cosx/2) dx.

∫(sinx/2)(cosx/2) dx
=(1/2)∫sinxdx
=-(1/2)cosx

∫(sinx/2)(cosx/2) dx
=∫(1/2)sinxdx
=-(1/2)*cosx+C