The locus of a point on the variable parabola `y^2=4a x ,` whose distance from the focus is alw...
639 views · Published 26 September 2017 · 5:05 · Indexed 22 September 2026
Channel: Doubtnut · 2017 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW The locus of a point on the variable parabola `y^2=4a x ,` whose distance from the focus is always equal to `k ,` is equal to (`a` is parameter) `4x^2+y^2-4k x=0` `x^2+y^2-4k x=0` `2x^2+4y^2-9k x=0` `4x^2-y^2+4k x=0`
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