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If Q is the foot of the perpendicular fr...

If Q is the foot of the perpendicular from a point p on the parabola `y^(2)=8(x-3)` to its directrix. S is an equilateral triangle then find the lengh of side of the triangle.

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The correct Answer is:
the `Delta SQZ, sin 30^@ = ( SZ)/( SQ) = ( 4)/( SQ) rArr SQ= 8` which is the length of the side
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AAKASH SERIES-PARABOLA-SOLVED EXAMPLES
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  13. Find the equation of the tangent to the parabola y^(2) = 8x and which ...

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  14. Find the equation of normal to the parabola y^(2) = 4x and whose slope...

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  15. Find the equation of the tangent and normal to the parabola x^(2)-4x-8...

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  16. Find the equation of tangent to the parabola y^(2)=8ax at (2a , 4a...

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  18. The normals from (P,0) are drawn to the parabola y^(2) = 8x, one of th...

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  19. Show that the locus of point of intersection of perpendicular tangents...

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