Question

resolva

a)(7-3i) - (3-3i) b) (-12-8i)+(5+2i) c) (9+3i) x (7-3i) d) (1-5i) - (3+4i) e)(12+i) + (4+2i)

f)(19+4i) - (12-3i) g) 10x (3-4i) h)(11+2i) x (13-2i) i) (7-5i) + (12-3i)

Answer 1

Olá...

Resolva :

a)

(7 - 3i) - (3 - 3i)

7 - 3i - 3 + 3i

4

b)

(- 12 - 8i) + (5 + 2i)

- 12 - 8i + 5 + 2i

- 7 - 6i

c)

(9 + 3i) × (7 - 3i)

63 - 27i + 21i + 9

72 - 6i

d)

(1 - 5i) - (3 + 4i)

1 - 5i - 3 - 4i

- 2 - 9i

e)

(12 + i) + (4 + 2i)

12 + i + 4 + 2i

16 + 3i

 

f)

(19 + 4i) - (12 - 3i)

19 + 4i - 12 + 3i

7 + 7i

g)

10 × (3 - 4i)

30 - 40i

h)

(11 + 2i) × (13 - 2i)

143 - 22i + 26i + 4

147 + 4i

i)

(7 - 5i) + (12 - 3i)

7 - 5i + 12 - 3i

19 - 8i

Espero ter ajudado.