Question

simplifique:3×(₋1/2)²+1/4 sobre:
3×(-1/3)²-3/2

Answer 1

Resposta:

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