Question

1) Calcule as potências e as raízes seguintes :
a) 42 = b) (– 9)2 = c) (10)0 = d) (5/3)² =

e) (3/7)⁻² = f) √25 = g) √-25 = h) 3√27 =

i) 3√125 = j) 42 = k) (– 3)3 = l) (10)0 =



m) (8/9)² = n) (2/3)⁻² = f) √225 = g) 3√125 =

Answer 1

Resposta:

a) 42(oq)= b) (– 9)2 =+81 c) (10)0 =1 d) (5/3)² = 25/9

e) (3/7)⁻² =-49/9 f) √25 = 5g) √-25 =-5 h) 3√27 =3

i) 3√125 =5 j) 42 =(oq) k) (– 3)3 = -27l) (10)0 = 1

m) (8/9)² = 64/81 n) (2/3)⁻²=9/4 = f) √225 =15 g) 3√125=25