TrigonometryTrig. equation

jacks

Well-known member
Number of real solution of the equation $\sin (\sin (\sin x)) = \cos (\cos (\cos x))$

where $0 \leq x\leq 2\pi$

earboth

Active member
Number of real solution <--- 2
of the equation $\sin (\sin (\sin x)) = \cos (\cos (\cos x))$

where $0 \leq x\leq 2\pi$
...