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In the interval 2/pi<x<pi, find the valu...

In the interval `2/pi

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To find the value of \( x \) in the interval \( \frac{2\pi}{3} < x < \pi \) for which the matrix \[ A = \begin{pmatrix} 2 \sin x & 3 \\ 1 & 2 \sin x \end{pmatrix} \] is singular, we follow these steps: ...
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