From the point (?1, 2) tangent lines are drawn to the parabola \[{{y}^{2}}=4x\], then the equation of chord of contact is [Roorkee 1994]

From the point (?1, 2) tangent lines are drawn to the parabola \[{{y}^

1.	From the point (?1, 2) tangent lines are drawn to the parabola \[{{y}^{2}}=4x\], then the equation of chord of contact is [Roorkee 1994]
A.	\[y=x+1\]
B.	\[y=x-1\]
C.	\[y+x=1\]
D.	None of these
Answer» C. \[y+x=1\]

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From the point (?1, 2) tangent lines are drawn to the parabola \[{{y}^{2}}=4x\], then the equation of chord of contact is [Roorkee 1994]

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