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If the chord xcosalpha+ysinalpha=p of th...

If the chord `xcosalpha+ysinalpha=p` of the hyperbola `(x^2)/(16)-(y^2)/(18)=1` subtends a right angle at the center, and the diameter of the circle, concentric with the hyperbola, to which the given chord is a tangent is `d ,` then the value of `d/4` is__________

A

4

B

5

C

4

D

7

Text Solution

Verified by Experts

The correct Answer is:
C
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