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Let A. B be two distinct points on the p...

Let A. B be two distinct points on the parabola `y^(2)=4x`. If the axis of the parabola touches a circle of radius r having AB as diameter, the slope of the line AB is

A

`-(1)/(r )`

B

`(1)/(r )`

C

`(2)/(r )`

D

`-(2)/(r )`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2018-MULTIPLE CHOICE QUESTIONS
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