help help help mathematics!!!!
回答 (4)
2012-10-01 6:38 pm
✔ 最佳答案
=-(2*2*2)- { [-3+(1- 6/5*5/6 ) / (-2*-2) ] +2}=-8- {[-3+ (1-1)/4 ] /2
=-8- [-3+ 0/4] /2
=-8- (-3+0)/2
=-8-(-3/2)
=-16/2-(-3/2)
=-(16-3)/2
=-13/2
2016-07-28 2:54 pm
1 1 1=6
2 2 2=6
3 3 3=6
4 4 4=6
5 5 5=6
7 7 7=6
8 8 8=6
9 9 9=6
2 2 2=6
3 3 3=6
4 4 4=6
5 5 5=6
7 7 7=6
8 8 8=6
9 9 9=6
2012-10-02 8:05 pm
(-2)(2)(2)-{[-3+(1-1 1/5*5/6)/(-2)(-2)]/2}
=(-2x4)-{[-3+(1-6/5*5/6)/(4)]/2}
=-8-{[-3+(1-1)/4]/2}
=-8-[(-3+0)/2]
=-8-(-3/2)
=-8+3/2
=-13/2
=(-2x4)-{[-3+(1-6/5*5/6)/(4)]/2}
=-8-{[-3+(1-1)/4]/2}
=-8-[(-3+0)/2]
=-8-(-3/2)
=-8+3/2
=-13/2
2012-10-01 1:53 am
(-2)(2)(2)-{[-3+(1-1 1/5*5/6)/(-2)(-2)]/2}
= -(2x2x2) - { [ -3+(1- (6/5)(5/6))/ (2x2)] /2}
= -8 - { [ -3+(1-1) / 4 ] /2}
= -8 - (-3/4)(1/2)
= -8 - (-3/8)
= -61/8
= -(2x2x2) - { [ -3+(1- (6/5)(5/6))/ (2x2)] /2}
= -8 - { [ -3+(1-1) / 4 ] /2}
= -8 - (-3/4)(1/2)
= -8 - (-3/8)
= -61/8
收錄日期: 2021-04-21 00:13:17
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https://hk.answers.yahoo.com/question/index?qid=20120930000051KK00377