Question

Determine as raízes quadradas de:
a) 200*i

b)3 + 4*i

Answer 1

Boa tarde

a) √(200i) 

100 + 200i - 100
100 + 200i + (10i)²
(10 + 10i)²

√(200i) = 10 + 10i 

b) √(3 + 4i) = √(4 + 4i - 1) = √(4 + 4i + i²) = (2 + i)²

√(3 + 4i) = 2 + i