JEE Advanced Mathematics question
A point moves on the circle and after covering a quarter of the circle leaves it tangentially. The equation of a line along which the point moves after leaving the circle is
Answer: (B),(C)
Solution
. After a quarter turn () the point is at angle (anticlockwise) or (clockwise):
A=(2120°,2120°)=(-1,3), B=(2(-60°),2(-60°))=(1,-3).
It leaves along the tangent there; the tangent to
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