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Saturday, 10 October

JEE Main 2024 · MathsNumerical answerNumerical valueMediumCalculation

JEE Main 30 January 2024, Shift 2, Maths Q29

Question 29 of 90 in this shift, Maths question 29 of 30, Section B.

Let a line passing through the point (−1,2,3)(-1, 2, 3) intersect the lines L1:x−13=y−22=z+1−2L_1: \frac{x-1}{3} = \frac{y-2}{2} = \frac{z+1}{-2} at M(α,β,γ)M(\alpha, \beta, \gamma) and L2:x+2−3=y−2−2=z−14L_2: \frac{x+2}{-3} = \frac{y-2}{-2} = \frac{z-1}{4} at N(a,b,c)N(a, b, c). Then the value of (α+β+γ)2(a+b+c)2\frac{(\alpha + \beta + \gamma)^2}{(a + b + c)^2} equals ________.

Official answer

196

NTA final key.

Same idea in other shifts

Asked 2× in all
  1. 3 Apr 2025, Shift 1 · Q15Let a line passing through the point (4,1,0)(4, 1, 0) intersect the line L1:x−12=y−23=z−34\mathrm{L}_1 : \frac{x-1}{2} = \frac{y-2}{3} = \frac{z-3}{4} at the…HardSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.