Question

Calculati: 1)x.x; 2) 1/3a.3a/3
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Answer 1

Răspuns:

Explicație pas cu pas:

x * x = x^2

1/3a * 3a/3 = 3a / 9a = 1/3

Answer 2

$x*x = x^{2} \\\\\frac{1}{3a} *\frac{3a}{3}~simplificam~3a = \frac{1}{3}$