Упростите: \[\frac{(\sin \frac{\alpha }{2} +\cos\frac{\alpha }{2})^2 }{1+\sin\alpha}\] 1 \(\frac{1+\cos {\alpha}}{1+\sin {\alpha}}\) \(\frac{1}{1+\sin {\alpha}}\) \(1+\sin {\alpha}\)

Задание

Упростите:

\[\frac{(\sin \frac{\alpha }{2} +\cos\frac{\alpha }{2})^2 }{1+\sin\alpha}\]

1
\(\frac{1+\cos {\alpha}}{1+\sin {\alpha}}\)
\(\frac{1}{1+\sin {\alpha}}\)
\(1+\sin {\alpha}\)