Rozwiąż równanie

[wisla22]

\(\displaystyle{ 4sin^2 \frac{x}{2}=1}\)

[RyHoO16]

\(\displaystyle{ 4 \sin^2 \frac{x}{2}=1 \iff \sin^2 \frac{x}{2}= \frac{1}{4} \iff \sin \frac{x}{2}= \frac{1}{2} \sin \frac{x}{2}= -\frac{1}{2}}\)