Match each description when z = 9 + 3i.
1. Real part of z a.3i
2. Imaginary part of b.z9
3. Complex conjugate of c.z9 - 3i
4. 3i - z d.-3i
5. z - 9 e.3
6. 9 - z f.-9

Question

Match each description when z = 9 + 3i.
1.	Real part of z                       a.3i	
2.	Imaginary part of                 b.z9	
3.	Complex conjugate of         c.z9 - 3i	
4.	3i - z                                    d.-3i	
5.	z - 9                                     e.3	
6.	9 - z                                     f.-9

anonymous · Answer

just treat them separately like  apples and oranges   9=apples 3i oranges

z=9+3i     ==real part +imaginary part
1)9
2)3i
3)(9-3i)   change of sign of given(9+3i_)
4)  3i-z    =3i -9-3i   =-9
5) z-9     =9+3i-9     =3i
6)  9-z  =9-9-3i  =- 3i
just treat them seperately  like apples and oranges       9 =apples 3i =oranges