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Prove that: (tantheta)/(sectheta -1) =...

Prove that:
`(tantheta)/(sectheta -1) = (tan theta + sec theta + 1)/(tan theta + sec theta -1)`

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The correct Answer is:
`(tantheta)/(sectheta -1) = (tan theta + sec theta + 1)/(tan theta + sec theta -1)`
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