f(x)=∣x∣+1f(x)=|x|+1f(x)=∣x∣+1
f(x)=x2+1f(x)=x^{2}+1f(x)=x2+1
f(x)=x3+1f(x)=x^{3}+1f(x)=x3+1
f(x)=sinxf(x)=\sin xf(x)=sinx
