Jawabanmu

2014-01-09T21:18:55+07:00
F(x)= \frac{2x}{x^{2}-4} dan G(x)= \sqrt{2x}
F(G(x))= \frac{2 \sqrt{2x} }{( \sqrt{2x} )^{2}-4} = \frac{2 \sqrt{2x} }{2x-4} = \frac{ \sqrt{2x} }{x-2}

Kesimpulannya:
F(G(x))= \frac{ \sqrt{2x} }{x-2}

semoga membantu...