Question

Simplifique;
a] √4
b] -√4
c] √-4
d] √-(2²)
e] √(-2)²
f] -√(-2)²

Answer 1

a] √4 = 2
b] -√4 = -2
c] √-4 = n existe
d] √-(2²) = n existe
e] √(-2)² = 2
f] -√(-2)² = -2