Question

relevant identities of sec²A+cos²A=1​

Answer 1

Answer:

Hlo it's very simple :-

Sec²A+Cos²A=1

Now take cos2A on RHS we get

●Sec²A=Cos²-A

Now take sec²A on RHS we get

Cos²A= Sec²A-1

Are the relevant identities of Sec²A+Cos²A=1

Answer 2

Answer:

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