Question

F(x) = tan x =

ada yang tau ga ?

Answer 1

Fx=tan x = sin x / cos x

gunakan f(uv)



u= sin x          v= cos x
u' = cos x        v'=-sinx

Answer 2

F(x) = tan x
= sin x/cos x
f '(x) = (u'v - uv')/v²
= (cos x . cos x - sin x (-sin x))/cos² x
= (cos²x + sin²x)/cos²x
= 1/cos²x
= sec²x