MathDB

9

Part of 1983 AIME Problems

Problems(1)

Minimum value of trig expression

Source:

11/4/2005
Find the minimum value of 9x2sin⁡2x+4xsin⁡x\frac{9x^2 \sin^2 x + 4}{x \sin x} for 0<x<π0 < x < \pi.
trigonometryinequalitiescalculusAIME