Hello all,
I have a problem from trying to solve an equation
```
import sympy as sp
a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,t,u,v,w,x,y,z = sp.symbols('
a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,t,u,v,w,x,y,z',non_zero=True, real=True)
expr1 = a*(g + (g - 1)*exp(a*e)*exp(b*f))*(exp(c*e)*exp(d*f) + 1) + c*(h +
(h - 1)*exp(c*e)*exp(d*f))*(exp(a*e)*exp(b*f) + 1)
expr2 =
b*(g + (g - 1)*exp(a*e)*exp(b*f))*(exp(c*e)*exp(d*f) + 1) + d*(h + (h -
1)*exp(c*e)*exp(d*f))*(exp(a*e)*exp(b*f) + 1)
solve([expr1,expr2],[e,f])
```
I know there is a solution because
```
import sympy as sp
a,b,c,d = sp.symbols(' a,b,c,d',non_zero=True, real=True)
g,h = sp.symbols(' g,h',,real=True)
expr1 = a*g +c*h
expr2 = b*g +d*h
solve([expr1,expr2],[g,h])
```
gives {h:0,g:0}
Do you have any tips ?
Thanks a lot
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