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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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