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If sinx + sin y=(1)/(2) and cos x+cos y=...

If `sinx + sin y=(1)/(2) and cos x+cos y=1`, then `tan (x+y)=`

A

`-3/4`

B

`4/3`

C

`8/3`

D

`(-8)/3`

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The correct Answer is:
D
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