Question

a) $\frac{2}{9}$

b) $\frac{4}{15}$

c) $\frac{5}{17}$

d) $\frac{3}{7}$

e) $\frac{1}{5}$
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Answer 1

Resposta:

Resposta certa = e) 1/5

Explicação passo-a-passo:

2²-(-1)²/2⁴-(-1)² -> 4-1/16-1 -> 3/15 -> 1/5