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Question

Mathematics Question on Transpose of a Matrix

Let Dk=12k2k1 nn2+n+2n2 nn2+nn2+n+2\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,∑^n_{k=1} D_k=96, The n is equal to

Answer

The correct answer is: 6