Equivalent mathematical symbolic expressions are not equal in sympy [duplicate]

Question

I'm trying to debug (and understand) why these two expressions ($r_1$ and $r_2$) are not equivalent in sympy:

import sympy as sp

B, V, m, q = sp.symbols('B V m q', positive = True, real = True)

r1 = (1/B)*(2*V*m/q)**(1/2)
r2 = (2*V*m/(q*B**2))**(1/2)

# returns false
r1 == r2

# returns false also
r1.simplify() == r1.simplify()

The only difference that I can see is that in the first case, B is raised to 1 and in the second, B is not raised to one (explicitly). I have read the sympy FAQ and various questions which have suggested to set real=True and positive=True to deal with the square root issue, but that doesn't seem to be working here.

Anyone have any suggestions?

Answer 1

Aha!

I think I discovered how to check for equality,

r1.equals(r2)

Returns True (as expected)!

Thanks all...

Source: This SO answer.