how do you show that summation from x=0 to x= infinity for a^x / x! = exp(a)? thanks!
Follow Math Help Forum on Facebook and Google+
Originally Posted by alexandrabel90 how do you show that summation from x=0 to x= infinity for a^x / x! = exp(a)? thanks! Hi alexandrabel90, We start by assuming we can write as a series of powers of a Since we successively differentiate to find all the coefficients, while setting a=0 and all higher powers are zero Continuing on like this, all the co-efficients are found
View Tag Cloud