Найпростіші тригонометричні рівняння

$\sin x=\frac{10}{9}$

$\cos x=0.8$

$\tg x=-4$

$\ctg x=6$

$\pm\frac{\pi}{4}+\pi k,k\in Z$

$\left(-1\right)^{k}\frac{\pi}{4}+\pi k,k\in Z$

$\frac{\pi}{6}+2\pi k,k\in Z$

$\pm\frac{\pi}{4}+2\pi k,k\in Z$

$\frac{\pi}{6}+\frac{\pi}{3}k,k\in Z$

$-\frac{\pi}{6}+2\pi k,k\in Z$

$-\frac{\pi}{12}+\pi k,k\in Z$

$\frac{\pi}{4}+\pi k,k\in Z$

$\frac{\pi}{6}+\frac{\pi}{3}k,k\in Z$

$-\frac{\pi}{6}+2\pi k,k\in Z$

$-\frac{\pi}{12}+\pi k,k\in Z$

$\frac{\pi}{4}+\pi k,k\in Z$

$\frac{\pi}{6}+\frac{\pi}{3}k,k\in Z$

$-\frac{\pi}{6}+2\pi k,k\in Z$

$-\frac{\pi}{12}+\pi k,k\in Z$

$\frac{\pi}{4}+\pi k,k\in Z$

$\pm\frac{2\pi}{3}+4\pi n,n\in Z$

$\frac{2\pi}{3}+2\pi n,n\in Z$

$\left(-1\right)^{n}\frac{\pi}{4}+3\pi n,n\in Z$

$\left(-1\right)^{n}\frac{\pi}{4}+\frac{3\pi}{2}n,n\in Z$

$\pm\frac{2\pi}{3}+4\pi n,n\in Z$

$\frac{2\pi}{3}+2\pi n,n\in Z$

$\left(-1\right)^{n}\frac{\pi}{4}+3\pi n,n\in Z$

$\left(-1\right)^{n}\frac{\pi}{4}+\frac{3\pi}{2}n,n\in Z$

$\pm\frac{2\pi}{3}+4\pi n,n\in Z$

$\frac{2\pi}{3}+2\pi n,n\in Z$

$\left(-1\right)^{n}\frac{\pi}{4}+3\pi n,n\in Z$

$\left(-1\right)^{n}\frac{\pi}{4}+\frac{3\pi}{2}n,n\in Z$

$\pm\frac{\pi}{8}+\frac{\pi n}{2},n\in Z$

$\frac{\pi}{8}+2\pi n,n\in Z$

$\left(-1\right)^{n}\frac{\pi}{8}+\frac{\pi n}{2},n\in Z$

$\left(-1\right)^{n}\frac{\pi}{8}+\pi n,n\in Z$