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Questions on Two Circles
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In this video, we discuss about the questions on the two circle cases.

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

Comments
(7)
U
Unacademy user
must for all ias prelims 2018 aspirants...........please continue full mock
R
Rupesh
5 months ago
sorry that's -1
If they are orthogonal then they should be intersecting and not touching each other. Solving with that approach value of lambda comes out to be -1. Correct me if I'm wrong.
Sachin Rana
a year ago
Yes, correct. Good.
orthogonality condition:2g1g2 +2f1f2 = c1 + c2 so, √\ = -1
Sachin Rana
a year ago
Yes, correct. Good.
Value of lambda is -1.
Sachin Rana
a year ago
Correct.
lambda equals to -1
Sachin Rana
a year ago
Correct.
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