f(x)=1/1-(-x+8π) funksiyaning boshlangʻich funksiyasini toping.

$f(x)=\frac{1}{1-\cos(-x+8\pi)}$ funksiyaning boshlang‘ich funksiyasini toping.

1. A$\frac12\,\mathrm{tg}\,\frac x2+C$
2. B$-\frac12\,\mathrm{ctg}\,\frac x2+C$
3. C$-\mathrm{ctg}\,\frac x2+C$
4. D$-\mathrm{tg}\,\frac x2+C$