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Friday, 9 October

JEE Main Maths · Vector Algebra

Solving for Unknown in Coplanarity

Solving for Unknown in Coplanarity (Vector Algebra) was asked once in the 42 JEE Main shifts Lumi analysed, in 2021.

Times asked
1
in 1 shift
Years
2021
Usual format
Single correct
Multi-step
Pattern
Gone quiet
asked once so far

How it is asked

  • Coplanarity of three vectors with parameters

Difficulty

Easy 0Medium 1Hard 0

Where it sits

Chapter: Vector Algebra. Topic: Triple Products, 6 questions over 6 ideas.

Every time it came

The question

Newest first, each with its options and official answer.

  1. 25 Jul 2021, Shift 1 · Q71Let the vectors (2+a+b)i^+(a+2b+c)j^−(b+c)k^(2+a+b)\hat{i}+(a+2b+c)\hat{j}-(b+c)\hat{k}, (1+b)i^+2bj^−bk^(1+b)\hat{i}+2b\hat{j}-b\hat{k} and…MediumSingle correct