identities Flashcards by Srijeet Jagarlamudi

Q

what is the identity for cosec^2

A

1+cot^2

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Q

what is the identity for sec^2

A

tan^2 +1

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Q

what is the identity for sin2A

A

2sinAcosA

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Q

what are the identities for cos2A

A

cos^2-sin^2
1-2sin^2
2cos^2-1

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