MCQOPTIONS
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| 1. |
If \[\mathbf{sin}\alpha +\text{ }\mathbf{sin}\beta +\mathbf{sin}\gamma =\mathbf{3}\] then the value of \[\mathbf{si}{{\mathbf{n}}^{\mathbf{3}}}\alpha \mathbf{+si}{{\mathbf{n}}^{\mathbf{3}}}\beta \mathbf{+si}{{\mathbf{n}}^{\mathbf{3}}}\gamma -\mathbf{2sin}\alpha \mathbf{.sin}\beta \] \[-\,\mathbf{2sin}\beta \mathbf{sin}\gamma \mathbf{-2sin}\gamma \mathbf{.sin}\alpha \] is ________ |
| A. | \[-\]1 |
| B. | \[-\]2 |
| C. | \[-\]3 |
| D. | 0 |
| E. | None of these |
| Answer» D. 0 | |