question_answer

    In a \[\frac{1}{27}\left( \begin{matrix}    1 & -26  \\    0 & -27  \\ \end{matrix} \right)\], if\[\frac{1}{27}\left( \begin{matrix}    -1 & -26  \\    0 & -27  \\ \end{matrix} \right)\], then the value of\[\alpha +\beta -\lambda =\pi \]is equal to :

A)  1                                            

B)  2

C)  \[{{\sin }^{2}}\alpha +{{\sin }^{2}}\beta -{{\sin }^{2}}\gamma \]                               

D)  \[\text{2 sin }\alpha \text{ sin}\beta \text{ cos }\gamma \]