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Prove that (1+tan A+sec A)(1+cot A-" cos...

Prove that `(1+tan A+sec A)(1+cot A-" cosec A")=2`

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The correct Answer is:
`(2 sin A cos A)/(sin A cos A)=2`
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FULL MARKS-TRIGONOMETRY-Additional Questions Solved
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  3. Prove that (1+tan A+sec A)(1+cot A-" cosec A")=2

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