Calculus
g3(x)=−21−x2g_3\left(x\right)=-2\sqrt{1-x^2}
Domain: 0≤x≤10\le x\le1
Domain: −1≤x≤0-1\le x\le0
g3(x)=21−x2g_3\left(x\right)=2\sqrt{1-x^2}