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[" If a normal to a parabola "y^(2)=4ax"...

[" If a normal to a parabola "y^(2)=4ax" makes an angle "phi" with its axis,then it will cut the curve "],[" again at an angle "],[[" A.",tan^(-1)(2tan phi)," B.",tan^(-1)((1)/(2)tan phi)],[" C.",cot^(-1)((1)/(2)tan phi)," D."quad " None "]]

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