McLaughlin formula of (e ^ x-1) / X expansion

McLaughlin formula of (e ^ x-1) / X expansion

e^x=1+x+x^2/2!+x^3/3!+…… +x^n/n!+…… e^x-1=x+x^2/2!+x^3/3!+…… +x^n/n!+…… (e^x-1)/x=1+x/2+x^2/3!+…… +x^(n-1)/n!+…… The interval is from negative infinity to positive infinity. The above is Maclaurin series. If Maclaurin formula is: e ^ x = 1 + X + x ^ 2 / 2