A very good problem from vectors asked in JEE Advanced 2020 Paper 1 Solutions (Hindi)
This video covers the problem of related Vectors and covers the concept of scalar product, vector product and Lagrange identity taken from recently held JEE Advanced 2020 Paper I question number 15 and the question is
In a triangle PQR, let a⃗ = QR⃗, b⃗ = RP⃗ and c⃗ = PQ⃗. If |a⃗| = 3, |b⃗⃗| = 4 and a⃗ ⋅ (c⃗ − b⃗⃗) /c⃗ ⋅ (a⃗ − b⃗⃗) = |a⃗| /(|a⃗| + |b⃗⃗|) then the value of |a⃗×b⃗⃗|^2 is _____
This video is suitable for the students aspiring for engineering entrance exam and is also suitable for CBSE, ISC, HSC, IB Board students and the students who have genuine interest in learning Vectors
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