Jika f(x)=x2−2f\left(x\right)=x^2-2f(x)=x2−2 dan g(x)=sinx+cosxg\left(x\right)=\sin x+\cos xg(x)=sinx+cosx, maka nilai f(g(30°))=....f\left(g\left(30\degree\right)\right)=....f(g(30°))=....
2−23\frac{\sqrt{2}-2}{3}32−2
2−22\frac{\sqrt{2}-2}{2}22−2
3−22\frac{\sqrt{3}-2}{2}23−2
3+23\frac{\sqrt{3}+2}{3}33+2
2+33\frac{\sqrt{2}+3}{3}32+3