Question

hey plz solve that..... ​

Answer 1

(sec x + cos x) (sec x - cos x)

=(sec x )^2-(cos x)^2

=1+tan x^2 - (1 - sin x^2)

=1+tan x^2 - 1 + sin x^2

=tan x^2 + sin x^2

Answer 2

Step-by-step explanation:

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