Question

Need Help with this question please
Tan^2x/secx=secx - cosx

Answer 1

Can someone help me out please

Answer 2

@Benny43 i will help

Answer 3

(tan x)^2/sec x={(sec ^2 x) -1}/sec x=sec x-cos x.@Benny43

Answer 4

@Benny43

Answer 5

tan^2x/secx=secx - cosx
tan^2x=sec^2x - 1

Answer 6

I multiplied both sides times the secant

Answer 7

and this
tan^2x=sec^2x - 1 or tan^2x=sec^2x - 1

Answer 8

is an identity, although we can prove that one too, if you want/need.