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If cosx-sinx=1//2, then tan2x=...

If `cosx-sinx=1//2`, then `tan2x=`

A

`sqrt(7)//3`

B

`sqrt(7)//4`

C

`3//sqrt(7)`

D

`2//sqrt(7)`

Text Solution

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The correct Answer is:
c
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MCGROW HILL PUBLICATION-TRIGONOMETRICAL IDENTITIES AND EQUATIONS -EXERCISE (LEVEL 1 Single Correct Answer Type Questions)
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