Решите уравнение \(\frac{cosx}{1+sinx}=0.\)

• \(\frac{\pi}{2}+{2\pi}k,k{\in}Z\)
• \(\frac{\pi}{2}+{\pi}k,k{\in}Z\)
• \(\frac{\pi}{3}+{2\pi}k,k{\in}Z\)
• \(\frac{\pi}{6}+{2\pi}k,k{\in}Z\)