Question

9sec square A-9 tan square A option (a) 0 ,(b)3 ,(c) -9 ,(d)9​

Answer 1

Answer:

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Answer 2

Answer:

9

Step-by-step explanation:

9sec^2A-9tan^2A

9(sec^2A-tan^2A)

9(1). {by using identity,sec^2A-tan^2A=1}

9

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