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If the line y cos alpha=x sin alpha+a co...

If the line `y cos alpha=x sin alpha+a cos alpha` be a tangtnt to the circle `x^(2)+y^(2)=a^(2)` then

A

`((a^(2))/(p), (b^(2))/(p))`

B

`((a^(2))/(p sin ^(2) alpha), (b^(2))/(p cos ^(2) alpha))`

C

` ((a^(2) sin ^(2) alpha)/(p), (b^(2) cos ^(2) alpha)/(p))`

D

`((a^(2) cos alpha)/(p), (b^(2) sin alpha)/(p))`

Text Solution

Verified by Experts

The correct Answer is:
D
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HIMALAYA PUBLICATION-ELLIPSE-QUESTION BANK
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