If `ax + by = 1` is a normal to the parabola `y^2=4Px,` then prove that `Pa^3 + 2aPb^2=b^2.`
1,419 views · Published 13 October 2018 · 3:19 · Indexed 5 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `ax + by = 1` is a normal to the parabola `y^2=4Px,` then prove that `Pa^3 + 2aPb^2=b^2.` -~-~~-~~~-~~-~- Please watch: "Tips and Tricks for IIT JEE ADVANCED 2018 | LAST 40 DAYS STRATEGY | Success Mantra" https://www.youtube.com/watch?v=7pqoCZTwDv4 -~-~~-~~~-~~-~-
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