Resposta:
B - 2 / (1-x)²
Explicação passo a passo:
y’ = ((1+x)' . (1-x) - (1+x) . (1-x)') / (1-x)²
y’ = (1 . (1-x) - (1+x) . (-1)) / (1-x)²
y’ = (1-x - (-1-x)) / (1-x)²
y’ = (1-x+1+x ) / (1-x)²
y’ = 2/(1-x)²
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Resposta:
B - 2 / (1-x)²
Explicação passo a passo:
y’ = ((1+x)' . (1-x) - (1+x) . (1-x)') / (1-x)²
y’ = (1 . (1-x) - (1+x) . (-1)) / (1-x)²
y’ = (1-x - (-1-x)) / (1-x)²
y’ = (1-x+1+x ) / (1-x)²
y’ = 2/(1-x)²