Answer:
4 is the real part
2i is the imaginary part
Explanation:
In complex number a+ib
'a' is the real part and ib is the imaginary part
All complex numbers comes with real part and imaginary part
The number without 'i' is always a real part
the term that has 'i' is an imaginary part
In the given complex number, 4+2i
4 is the real part
2i is the imaginary part