How to solve integral ==

I need help how to wright a code to solve the problem.

I did it like this, but it does not work, what have i done wrong?

syms x b 
solve(int(exp(x)==1,1,b))

Answer 1

[John D'Errico]

You want to integrate exp(x), with limits from 1 to b?, and then to find b, such that the integral is 1?

First, how do we perform the integration?

syms x b
int(exp(x),x,[1,b])

ans = 

So that is easy enough. What value of b gives an integral of 1? Just wrap solve around that.

solve(int(exp(x),x,[1,b]) == 1)

ans = 

[kris Holm]

thanks a lot for your help