Question

Berapa integral dari sin^2 X - Cos^2 X dx ?

Answer 1

Int1/2(1 -cos 2x) - int 1/2 (1+cos 2x)
= 1/2 x -1/4 sin 2x -( 1/2 x + 1/4 sin 2x)
= 1/2 x -1/4 sin 2x -1/2 x -1/4 sin 2x
= -2/4 sin 2x
= -1/2 sin2x