Math, asked by pd1503, 11 months ago

Prove:
sec⁴a-tan⁴a=1+2tan²a​

Answers

Answered by savitatehre111
22

Step-by-step explanation:

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Answered by Prakshi4270
5

Answer:

Step-by-step explanation:

LHS: Sec^4A-tan^4A=1+2tan^2A

(Sec^2A+tan^2A)(sec^2A-tan^2A)

(1+tan^2A+tan^2A)(1)

(1+2tan^2A) = RHS

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