Question

help
show that (1-cosX)(1+1/cosX) = tan X sin X

Answer 1

after taking LCM
(1-cosx) (1+cosx)/(cosx)
=(1-cos^2 x)/(cosx)
=sin^2 x / (cosx)
= sinx. sinx/cosx
= sinx. tanx = RHS
Hence Proved

Answer 2

@clop3195
i hope i have solved ur problem