3 years ago

How do I verify the identity?

1 answer:

6 0

Left hand side :

cos2x - tan2x / sin2x

can be written as..

cos2x/sin2x - tan2x/sin2x

1/tan2 - 1/cos2x (according to formula, tan2x = sin2x/cos2x )

cot2x - sec2x = right hand side (proved)

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postnew [5]

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