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4 câu trả lời 2280
a, (37)21:(1−4049)3=(37)21:(949)3=(37)21:[(37)2]3=(37)21:(37)6=(37)15b, 3.(23)3−(−523)0+49=3.827−1+49=89−1+49=129−1=43−1=13c, (−34)2−4.(−34)3+34=916−4.−2764+34=916+2716+34=94+34=3a, 3721:1-40493=3721:9493=3721:3723=3721:376=3715b, 3.233--5230+49=3.827-1+49=89-1+49=129-1=43-1=13c, -342-4.-343+34=916-4.-2764+34=916+2716+34=94+34=3
d, 85.12443.86=(23)5.(22)4.34(22)3.(23)6=215.28.3426.218=223.34224=342=812d, 85.12443.86=235.224.34223.236=215.28.3426.218=223.34224=342=812.
a, (37)21:(1−4049)3=(37)21:(949)3=(37)21:[(37)2]3=(37)21:(37)6=(37)15b, 3.(23)3−(−523)0+49=3.827−1+49=89−1+49=129−1=43−1=13c, (−34)2−4.(−34)3+34=916−4.−2764+34=916+2716+34=94+34=3a, 3721:1-40493=3721:9493=3721:3723=3721:376=3715b, 3.233--5230+49=3.827-1+49=89-1+49=129-1=43-1=13c, -342-4.-343+34=916-4.-2764+34=916+2716+34=94+34=3
d, 85.12443.86=(23)5.(22)4.34(22)3.(23)6=215.28.3426.218=223.34224=342=812d, 85.12443.86=235.224.34223.236=215.28.3426.218=223.34224=342=812.
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