MCQ
What is the value of $\int_{\frac{\pi}{6}}^{\frac{\pi}{3}}\frac{\text{dx}}{\sin2\text{x}}\ ?$
- A$\frac{1}{2}\log(-1)$
- B$\log(-1)$
- ✓$\log3$
- D$\log\sqrt{3}$
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$A\left[ {\begin{array}{*{20}{c}}
1&2&3 \\
0&2&3 \\
0&1&1
\end{array}} \right] = \left[ {\begin{array}{*{20}{c}}
0&0&1 \\
1&0&0 \\
0&1&0
\end{array}} \right]$ Then $A^{-1}$ is