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Saturday, 31 October

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JEE Main 2021 · MathsMultiple choiceSingle correctMediumApplication

JEE Main 31 August 2021, Shift 1, Maths Q75

Question 75 of 90 in this shift, Maths question 15 of 30, Section A.

The line

12x\cos\theta+5y\sin\theta=60

is tangent to which of the following curves ?

(1) $x^2+y^2=60$
(2) $x^2+y^2=169$
(3) $144x^2+25y^2=3600$ Official answer
(4) $25x^2+12y^2=3600$

Official answer

Option 3

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.