Mathematics · Application of Derivatives
Let f(x) = 3sin4x + 10sin3x + 6sin2x - 3, where x ∈ (-π/6, π/2). Then, f is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1increasing in (-π/6, π/2)
- 2decreasing in (0, π/2)
- 3increasing in (-π/6, 0)
- 4decreasing in (-π/6, 0)✓
Correct answer
decreasing in (-π/6, 0)
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