Question

Calcule as raizes a seguir:

a) raiz 121
b) raiz 256
c) raiz cúbica 125
d) raiz cúbica -8
e) raiz 149/25.

Answer 1

a) √121= 11

b) √256 = 16

c) ³√125 = 5

d) ³√-8 = -2

e) √49/25 = 7/5

Answer 2

a) 11 pois 11×11=121
b) 16 pois 16×16=256
c) 5 pois 5×5=25×5=125
d) -2 pois (-2)×(-2)=-4×(-2)= -8
e) 0,48