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((sinA)/(1-cosA))-((1-cosA)/(sinA))=...

`((sinA)/(1-cosA))-((1-cosA)/(sinA))=`

A

`2 tan A`

B

`2 cot A`

C

`2"cot"A/2`

D

`2"tan"A/2`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • ((cosA+sinA)/(cosA-sinA))-((cosA-sinA)/(cosA+sinA))=

    A
    `2 cot 2A`
    B
    `2 sec2A`
    C
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  • sqrt((1+sinA)/(1-sin A ))=

    A
    `pm ( sin A + tan A)`
    B
    `pm ( sec A + tan A) `
    C
    `pm ("cosec" A- cot A ) `
    D
    `pm ( sin A - cot A )`

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