sin-sin-x-cos-cos-x-x-0-2pi-

Question Number 1417 by 123456 last updated on 30/Jul/15

\sin (\sin x) ⩽ \cos (\cos x)

x \in [0, 2 π)

Commented by Rasheed Ahmad last updated on 02/Aug/15

W h a t t o d o w i t h i t ? I s i t a n i n e q u a t i o n

t o s o l v e ? O r i s i t a n i d e n t i t y t o

p r o v e ?