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Suppose two perpendicular tangents can be drawn from the origin to the circle `x^(2)+y^(2)-6x-2py+17=0`, for some real p. then `|p|`= |
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Answer» Correct Answer - C `(x-3)^(2)+(y-p)^(2)=9-17+p^(2)` Director circle is `(x-3)^(2)+(y-p)^(2)=2(p^(2)-8)` Presses through (0, 0) `9+p^(2)=2p^(2)-16` `p^(2)=25rArrp=pm5rArr|p|=5` |
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