Question

Calcule o valor de cada expressão
A)√-16
B)√1,44
C)-√-9
D)-√49
E)-√-1
F)√169

Answer 1

A) -4
B) 1,2
C) 3
D) -7
E) 1
F) 13

Answer 2

$\sqrt{ - 16} = - 4 \times - 4 = - 16 \\ \sqrt{1.44 = 1.2 \times 1.2 = 1.44 } \\ \sqrt{ - 9} = - 3 \times - 3 = - 9 \\ \sqrt{49} = 7 \times 7 = 49 \\ \sqrt{1} = 1 \times 1 = 1$