Question

sin^2a + cos^2a=1 prove the identities​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

sin a=p/h

cos a=b/h

sin^2a+cos^2a

=p^2/h^2+b^2/h^2

=p^2+b^2/h^2

=h^2/h^2

=1

proved

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