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From a fixed point A three normals are drawn to the parabola `y^(2)=4ax` at the points P, Q and R. Two circles `C_(1)" and "C_(2)` are drawn on AP and AQ as diameter. If slope of the common chord of the circles `C_(1)" and "C_(2)` be `m_(1)` and the slope of the tangent to teh parabola at R be `m_(2)`, then `m_(1)xxm_(2)`, is equal toA. `1/2`B. `2`C. `-1/2`D. `-2` |
| Answer» Correct Answer - A | |