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Saturday, 10 October

JEE Main 2021 · MathsNumerical answerNumerical valueMediumMulti-step

JEE Main 3 August 2021, Shift 2, Maths Q89

Question 89 of 90 in this shift, Maths question 29 of 30, Section B.

A vertical pole of height 10310\sqrt{3} meters is observed from three points, A, B and C in the same horizontal line passing through the foot 'O' of the pole. The angles of elevation of the top, 'P', of the pole from A, B and C are in A.P. If AP=203AP = 20\sqrt{3} meters, OC=10OC = 10 meters and BP=kBP = k meters, then k2k^2 is equal to ‾\underline{\hspace{2em}}.

Official answer

600

NTA final key.

Chapter
Trigonometric Functions
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 42 of the 174 JEE Main shifts held from 2017 to 2026.