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For the curve x = t^2 - 1, y = t^2 - t, ...

For the curve `x = t^2 - 1, y = t^2 - t,` the tangent line is perpendicular to `x`-axis, then `t =` (i)`0` (ii)`infty` (iii) `1/(sqrt3)` (iv) `-1/(sqrt3)`

A

`t=0`

B

`t=1`

C

`t= (1)/(sqrt3)`

D

`t = (1)/(2)`

Text Solution

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The correct Answer is:
B
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