A series of chords is drawn to the parabola `y^2=4ax`, so that their projections on a straight ...
74 views · Published 11 October 2018 · 10:57 · Indexed 23 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW A series of chords is drawn to the parabola `y^2=4ax`, so that their projections on a straight line which is inclined at an angle `alpha` to the axis are all of constant length ‘c’. If the locus of their middle point is the curve `(y^2-lambdaax)(ycosalpha +2asinalpha)^2+a^2c^2=0`.Then find `lambda`
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