Math, asked by sahuprathna18, 8 months ago

sec4 A - tan4 A = 1 + 2 tan2A.

Answers

Answered by nishtha055

4

Answer:

hey

Step-by-step explanation:

l.h.s=(sec2a)2+(tan2a)2

( sec2a+tan2a)(sec2a-tan2a)

(sec2a+tan2a)(1)

(1+tan2a)+tan2a

1+2tan2a=r.h.s

hope it will help u dear...

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