﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 13:22:03
﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1﹣2³÷﹙﹣2-¼
﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1
﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1
﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1
= -8÷(-9/4)×1/9 - 32/81+1
= -8×(-4/9)×1/9 - 32/81+1
= 32/81 - 32/81+1
=1
-8÷(-9/4)×1/9-32/81+1
32/9×1/9-32/81+1
1
原式=-8x4/9x1/9-32/81+1=32/81-32/81+81/81=1
﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1
=-8÷-4/9×1/9-32/81+1
=-8×-9/4×1/9-32/81+1
=18×1/9-32/81+1
=2-32/81+1
=3-32/81
=2又81分之49
望楼主采纳
1
﹣2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1
=-8÷-9/4×1/9-32/81+1
=-8×-4/9×1/9-32/81+1
=32/81-32/81+1
=0+1
=1
-2³÷﹙﹣2-¼﹚×﹙﹣1/3﹚²-32/81+1
=-8÷(-2¼)×1/9+49/81
=-8×(-4/9)×1/9+49/81
=-8×(-4/81)+49/81
=-32/81+49/81
=1