The number of values of in [0,2 ] for which 2 sin 3 - 7 sin 2 + 7 sin = 2, is:
Mathematics · JEE Main · NTA Exams — Trigonometry
The number of values of 
in \([0,2 \pi]\) for which
2 sin3 \(\alpha\) - 7 sin2 \(\alpha\) + 7 sin \(\alpha\) = 2, is:
in \([0,2 \pi]\) for which 2 sin3 \(\alpha\) - 7 sin2 \(\alpha\) + 7 sin \(\alpha\) = 2, is:
- 6
- 4
- 3
- 1
Answer
(C) 3
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