Sin x cos x ( tan x + csc x cos x ) = .... mohon dibantu:)

Trigonometri
tan x = sin x/cos x
csc x = 1/sin x
.
sin x cos x ( tan x + csc x. cos x) =
= sin x cos x ( sin x/cos x + cos x/sin x)
= (sin² x + cos² x)
= 1