Math, asked by sg249862, 7 months ago

prove that (1+tan A)^2+ (1-tan A)^2

Answers

Answered by sukh062

1

Answer:

2 sec²A

Step-by-step explanation:

1+tan²A+2tan A + 1+tan²A-2tan A

2(1+tan²A)

2 sec²A

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