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The slope of the tangent to the curve x=...

The slope of the tangent to the curve x=`t^(2)+3t-8,y=2t^(2)-2t-5` at the point (2,-1) is

A

`(22)/(7)`

B

`(6)/(7)`

C

`(7)/(6)`

D

`(-6)/(7)`

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The correct Answer is:
B
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