What is the magnitude of the resultant vector of z-y?

For this case what we should do is take into account the following vectors:

We must find the following subtraction of vectors:

Subtracting component to component we have:

By writing we have:

Then the module of the resulting vector is given by:

Rewriting we have:

The module of the resulting vector is given by:

option B

quit

step-by-step explanation: