nice-calculus-prove-that-5pi-0-pi-3-9-3-2pi-8sin-x-sin-2x-dx-6pi-m-n-

Question Number 134672 by mnjuly1970 last updated on 06/Mar/21

\dots . n i c e c a l c u l u s \dots

p r o v e t h a t :

\sqrt{5 π} ⩽ \int_{0}^{\frac{π}{3}} \frac{9 \sqrt{3}}{2 π} \sqrt{8 s i n (x) - s i n (2 x)} d x ⩽ \sqrt{6 π}

\dots m . n \dots .