Question

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Решите sinx<1/2

Answer 1

$Sinx<frac{1}{2}\\-pi -arcSinfrac{1}{2}+2pi n <x<arcSinfrac{1}{2}+2pi n ,nin Z\\-pi-frac{pi }{6}+2pi n<x<frac{pi }{6}+2pi n,nin Z\\-frac{7pi }{6}+2pi n<x<frac{pi }{6}+2pi n,nin Z\\x in(-frac{7pi }{6}+2pi n;frac{pi }{6}+2pi n),nin Z$

Answer 2

https://znanija.com/task/31695314