A) positive
B) zero
C) negative
D) -3
Correct Answer: C
Solution :
For\[\alpha =-\frac{\pi }{2},\,\,\beta =-\frac{\pi }{2}\]and\[r=2\pi \] \[\sin \alpha +\sin \beta +\sin \gamma =-2\] \[\Rightarrow \]minimum value of the expression is negativeYou need to login to perform this action.
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