Как найти область значении функции?
y= 3cos x-1
y=2-sin x
cosx e[-1.1]
3cosx e[-3.3]
3cosx-1 e[-4.2]
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cosx e[-1.1]
3cosx e[-3.3]
3cosx-1 e[-4.2]
y=2-sin x
sinx e[-1/1]-sinx e[1,-1]-sinx+2 e[3.1]2-sin x e[1.3]