Question

simplifique:3·(-1/2)²+1/4 / 3·(-1/3)²-3/2

Answer 1

Resposta:

$[3.(-{1\over2})^2+{1\over4}]\div[3.(-{1\over3})^2-{3\over2}]=$

$[3.(+{1\over4})+{1\over4}]\div[3.(+{1\over9})-{3\over2}]=\\ \\ ({3\over4}+{1\over4})\div({\not3\over\not9_3}-{3\over2})=\\ \\ {4\over4}\div({1\over3}-{3\over2})=\\ \\ 1\div({2-9\over6})=\\ \\ 1\div(-{7\over6})=\\ \\ 1\times(-{6\over7})=-{6\over7}$