Question

calcule o valor de:​

Answer 1

k) $(1.9)^{2} =3.61$

l) $20{-1} =\frac{1}{20}$

Answer 2

Resposta:

k) 1,9² = 1,9 × 1,9 = 3,61

l) 20‐¹= (1/20)¹ = 1/20¹