Can I bra through a Modulus in Quantum Mechanics?

[kq6up]

If I have something like ||V>+|W>| That is the modulus of sum of two ket vectors, can I "bra" through the modulus like: <V|(||V>+|W>| )=|<V|V>+<V|W>|?

Thanks,
kq6up

 

[blue_leaf77]

||V>+|W>|

I have never heard of the modulus of a vector without knowing anything about the basis being used - at least you need to know the coefficients corresponding to each basis vector.

can I "bra" through the modulus like: <V|(||V>+|W>| )=|<V|V>+<V|W>|?

You cannot take an inner product between a vector and a scalar.

 

[kq6up]

When you put it as you did in your second line, it makes sense that my approach was wrong headed.

Thanks,
kq6up