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The tangent at the point P(x1, y1) to th...

The tangent at the point `P(x_1, y_1)` to the parabola `y^2 = 4 a x` meets the parabola `y^2 = 4 a (x + b)` at Q and R. the coordinates of the mid-point of QR are

A

`(x_1-a,y_1+b)`

B

`(x_1,y_1)`

C

`(x_1+b,y_1+a)`

D

`(x_1-b,y_1-b)`

Text Solution

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The correct Answer is:
B
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