Q4 of 11 Page 5

(i) 4 – 3i              (ii)                  (iii) –i


(i) 4 – 3i  

=

=

= =

=

(ii)   

Multiplicative inverse of

=

=

= =

=

(iii) –i

Multiplicative inverse of –i

=

=

= = = I

= 0 + (1) i

More from this chapter

All 11 →
2
(i) 3(7 + i7) +i(7 + i7)           

(ii) (1 – i) – (-1 + i6)        

(iii)

3
(i)     (ii) (1 – i)4        (iii)      (iv)        

5
Express the following expression in the form of a + ib:

6
Solve the following equations
(i) x2 + 3 = 0              

(ii) 2x2 + x + 1 = 0            

(iii) x2 + 3x + 9 = 0