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Find the equations of tangents to the pa...

Find the equations of tangents to the parabola `y^(2)=16x` which are parallel and perpendicular respectively to the line 2x-y+5 =0 also find the coordinates of their point of contact.

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The correct Answer is:
`2x-y+2=0`, point of contact `(1,4) x-2y+16=0`, point of contact `(16,-16)`
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