Question

If the tangent to the curve, at the point is perpendicular to the line, , then which one of the following points lies on the curve?

A

B

C

D

Medium
Solution
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Correct option is B)


lies on the curve
.(i)
Also,
(slope of tangent)
this tangent is to

.(ii)
By (i) and (ii): ,

lies on this curve.

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