[Python] Avoid transformations in sympy latex printing (don't want automatic transformation of...

With the code:

from sympy import *
x = symbols('x')
y = 1/(sqrt(2))*cos(x)
print_latex(y)


I obtain:

\frac{\sqrt{2} \cos{\left(x \right)}}{2}



I need to obtain:

\frac{1}{\sqrt{2}}\cos{\left(x \right)}



How to instruct print_latex to keep the original form?

I tryed with :

yy = Mul(1/(sqrt(2)),cos(x),evaluate=False)
print_latex(yy)


It gives: \frac{\sqrt{2}}{2} \cos{\left(x \right)}



It's better, but not exactly what I want.

With yy = Mul(cancel(1/(sqrt(2))),cos(x),evaluate=False), I obtain the same output.

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