jee_main_2026_21_jan_evening - Three Dimensional Geometry Topics

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

Sample Questions in this Chapter

QUESTION #7 Lines
Let the line L pass through the point (-3, 5, 2) and make equal angles with the positive coordinate axes. If the distance of L from the point (-2, r, 1) is √((14)/(3)), then the sum of all possible values of r is:
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QUESTION #8 Shortest Distance
Let the line L₁ be parallel to the vector -3 i + 2 j + 4 k and pass through the point (2, 6, 7) and the line L₂ be parallel to the vector 2 i + j + 3 k and pass through the point (4, 3, 5). If the line L₃ is parallel to the vector -3 i + 5 j + 16 k and intersects the lines L₁ and L₂ at the points C and D, respectively, then | CD|² is equal to:
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Rankbit System
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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