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Saturday, 31 October

JEE Main 2023 · MathsNumerical answerNumerical valueHardCalculation

JEE Main 12 April 2023, Shift 1, Maths Q22

Question 22 of 90 in this shift, Maths question 22 of 30, Section B.

Let Dk=∣12k2k−1nn2+n+2n2nn2+nn2+n+2∣D_k=\begin{vmatrix}1&2k&2k-1\\ n&n^2+n+2&n^2\\ n&n^2+n&n^2+n+2\end{vmatrix}. If ∑k=1nDk=96\sum_{k=1}^{n}D_k=96, then nn is equal to __________.

Official answer

6

NTA final key.

Topic
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Idea tested
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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.