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Find the condition for the straight line...

Find the condition for the straight line lx+my+n=0 to be a tangent to the parabola `y^(2)=4ax` and find the coordinates of the point of contact.

Text Solution

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The correct Answer is:
`=((am^2)/l^(2),(-2am)/(l))or ((n)/(l),(-2am)/(l))`
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