Question

Prove that (tan x + sin x) (tan x - sin x) = tan^2 x sin^2 x

Answer 1

Answer:

Proved

Step-by-step explanation:

(tan x + sin x) (tan x - sin x) = sin²x(1/cosx +1) (1/cosx - 1)

                                            = sin²x(sec²x - 1)

                                            = sin²xtan²x

                                            = tan²xsin²x