d)
0.66666=⅔
0.2=2/10=1/5
√(⅕²+⅗)=√(1/25+15/25) = √16/25 = 4/5
(⅔-2)³= (⅔-6/3)³=(-4/3)³= -64/27
(3/2)^(-2)= (⅔)²=4/9
entonces:
⅘ - (-64/27) ÷ 4/9 + 24/90
⅘ + 16/3 +24/90
(72+480 +24)/90
576/90
6⅖
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d)
0.66666=⅔
0.2=2/10=1/5
√(⅕²+⅗)=√(1/25+15/25) = √16/25 = 4/5
(⅔-2)³= (⅔-6/3)³=(-4/3)³= -64/27
(3/2)^(-2)= (⅔)²=4/9
entonces:
⅘ - (-64/27) ÷ 4/9 + 24/90
⅘ + 16/3 +24/90
(72+480 +24)/90
576/90
6⅖