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the length of focal chord of parabola y 2 =4ax at a distance ‘b’ from vertex is ‘c’. then calc its length?? plz do ans fast urgent

the length of focal chord of parabola y2=4ax at a distance ‘b’ from vertex is ‘c’. then calc its length??
 
 
 
plz do ans fast urgent

Grade:11

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
6 years ago
length of focal chord of parabola y2=4ax is given by formula = 4a cosec^2 θ

tanθ → slope

Now u can find slope from given info

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