1. The problem statement, all variables and given/known data Use an appropriate series to compute the value of cosh(1.822) 2. Relevant equations coshx=e^x/2+e^(-x)/2 3. The attempt at a solution I follow the series 1+x+x^2/(2! )…. etc and 1-x+x^2/(2! )…. then add the answers together and divide by 2. However the answers im coming out at is 3.11 rather than 3.17 which i get on the calculator. Thanks so much in advance.