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Locus Problems
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Sachin Rana is teaching live on Unacademy Plus

Sachin Rana
IVth Year UG, IIT Bombay | YouTuber (143k subs) | Mentored 3 under 100 ranks in JEE Advanced | No. 1 educator for Organic Chemistry.

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sir in the 1st q. of lp, mid-pt of PQ was being asked, how did you just simply divided the x&y you found by 2? this is my doubt for finding the mid-pt of PQ, section formula should have been used by putting both the Xs n Ys.. but you just simply divided the second x&y you found????
sir, in your fav question from locus problems (lp), at the end when you substituted the value of x1 in the given eqn, you didn't put the value of x1 in the place of all xes, you did put the value in sinx, but not in the 1st x. y^2= 4a(x + ...) <--first x. why?
sir how is k eliminated in the last step of the first question