The function f(x) = 4sin3x - 6sin2x + 12sin x + 100 is strictly(a) inc – InterviewSolution

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1.	The function f(x) = 4sin3x - 6sin2x + 12sin x + 100 is strictly(a) increasing in π, 3π2 (b) decreasing in π2,π(c) decreasing in -π2,π2 (d) decreasing in 0,π2
Answer» The function f(x) = 4sin³x - 6sin²x + 12sin x + 100 is strictly (a) increasing in $[π, \frac{3 π}{2}]$ (b) decreasing in $(\frac{π}{2}, π)$ (c) decreasing in $[- \frac{π}{2}, \frac{π}{2}]$ (d) decreasing in $[0, \frac{π}{2}]$

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