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Saturday, 31 October

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JEE Main 2021 · MathsMultiple choiceSingle correctMediumMulti-step

JEE Main 31 August 2021, Shift 2, Maths Q73

Question 73 of 90 in this shift, Maths question 13 of 30, Section A.

The locus of mid-points of the line segments joining

(-3, -5)

and the points on the ellipse

\frac{x^2}{4}+\frac{y^2}{9} = 1

is :

(1) $36x^2+16y^2+90x+56y+145 = 0$
(2) $9x^2+4y^2+18x+8y+145 = 0$
(3) $36x^2+16y^2+72x+32y+145 = 0$
(4) $36x^2+16y^2+108x+80y+145 = 0$ Official answer

Official answer

Option 4

NTA final key.

Chapter: Conic Sections
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy

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 108 of the 174 JEE Main shifts held from 2017 to 2026.