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Let P be a point on parabola x ^ 2 ...

Let P be a point on parabola ` x ^ 2 = 4y ` . If the distance of P from the centre of circle ` x ^ 2 + y ^ 2 + 6x + 8 = 0 ` is minimum, then the equation of tangent at P on parabola ` x ^ 2 = 4y ` is :

A

x + 4y - 2 = 0

B

x + 2y = 0

C

x + y + 1 = 0

D

x - y + 3 = 0

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The correct Answer is:
C
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DISHA PUBLICATION-APPLICATION OF DERIVATIVES -EXERCISE - 2
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