jee_main_2026_28_january_morning - Vector Algebra Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #19 Scalar Product of Vectors
For three unit vectors a, b, c satisfying | a- b|²+| b- c|²+| c- a|²=9 and |2 a+k b+k c|=3, the positive value of k is :
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QUESTION #25 Vector Equations and Triangles
Let PQR be a triangle such that PQ = -2 i - j + 2 k and PR = a i + b j - 4 k, a, b in Z. Let S be the point on QR, which is equidistant from the lines PQ and PR. If | PR| = 9 and PS = i - 7 j + 2 k, then the value of 3a - 4b is ____.
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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