Question

Tan(45-x) = (cosx-sinx)/(xosx+sinx)

Answer 1

Step-by-step explanation:

(sin x+cos x/sinx -cos x)

divide numerator and dinominator by cos x

we get,

((tan x+1)/(tanx-1)

=-((tan45+tanx)/(1-tan 45.tanx))

=-(tan(45+x))or tan (45-x)

hope it helps