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If y+b=m1(x+a)and y+b=m2(x+a) are two ta...

If `y+b=m_1(x+a)`and `y+b=m_2(x+a)` are two tangents to the paraabola `y^2=4ax` then

A

`m_(1) + m_(2) =0`

B

`m_(1) m_(2) =1`

C

`m_(1) m_(2) =-1`

D

`m_(1) =m_(2)`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-CONIC SECTIONS-SECTION-B
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  6. If the line y-sqrt3x+3=0 cuts the parabola y^2=x+2 at P and Q then AP....

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  8. If the chord of contact of tangents from a point P to the parabola y^2...

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  14. Find the point on the curve y^2=4x which is nearest to the point (2, 1...

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