\frac1\frac12 \sin(2x) = 2\sqrt2 \Rightarrow \frac2\sin(2x) = 2\sqrt2 \Rightarrow \frac1\sin(2x) = \sqrt2 \Rightarrow \sin(2x) = \frac1\sqrt2 = \frac\sqrt22. - Nelissen Grade advocaten