If the trace of the matrix A= bmatrix x-2&e^x&- x (x^2)&x^2-x+3& |x| 0& ^ -1 x&x-7…

MATHEMATICS · Single correct · CBSE · Mathematics · Matrices · Matrices

Problem

If the trace of the matrix A=[x−2ex−sin⁡xcos⁡(x2)x2−x+3ln⁡∣x∣0tan⁡−1xx−7]A=\begin{bmatrix}x-2&e^x&-\sin x\\\cos(x^2)&x^2-x+3&\ln|x|\\0&\tan^{-1}x&x-7\end{bmatrix} is zero, then xx is equal to: (a) −2-2 or 33 (b) −3-3 or −2-2 (c) −3-3 or 22 (d) 22 or 33

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