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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

1)`(22)/(7)`

B

2)`(6)/(7)`

C

3)`(7)/(6)

D

4)`(-6)/(7)`

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The correct Answer is:
B
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