MCQ
જો $\alpha ,\beta ,\gamma \in R,$ તો$\begin{vmatrix}{(e^{i\alpha}+e^{-i\alpha})^2}&{(e^{i\alpha}-e^{-i\alpha})^2}&{1}\\(e^{i\beta}+e^{-i\beta})^2&(e^{i\beta}-e^{-i\beta})^2&1\\(e^{i\gamma}+e^{-i\gamma})^2&(e^{i\gamma}-e^{-i\gamma}) ^2&1\end{vmatrix}= ........$
- A${e^{i\left( {\alpha + \beta + \gamma } \right)}}$
- B${e^{ - i\left( {\alpha + \beta + \gamma } \right)}}$
- C${e^{i\alpha \beta \gamma }}$
- ✓એક પણ નહીં.