Rozwiąż równanie
: 7 gru 2008, o 06:56
\(\displaystyle{ ctg(x- \frac{3,14}{5})=0}\)
\(\displaystyle{ ctg(x-\frac{\pi}{5})=0}\)
\(\displaystyle{ x-\frac{\pi}{5}=\frac{\pi}{2}+k\pi \ \ k\in C}\)
\(\displaystyle{ x=\frac{7\pi}{10}+k\pi \ \ k\in C}\)