1.(-52)/[(+2)X(-13)]
2.(-12)X[(-20)/(-4)]
3.(+100)/[(-2)X(+5)]
4.(-7.2)/[(-3.6)X(+5)]
要寫步X!
MATH!急!!PLZ
2007-09-27 2:10 am
回答 (4)
2007-09-27 2:19 am
✔ 最佳答案
1.(-52)/[(+2)X(-13)]=(-52)/(-26)
=2
2.(-12)X[(-20)/(-4)]
=(-12)/5
=(-2.4)
3.(+100)/[(-2)X(+5)]
=100/(-10)
=(-10)
4.(-7.2)/[(-3.6)X(+5)]
=(-7.2)/(-18)
=0.25
參考: 希望幫到你^^"
2007-09-27 2:23 am
1.(-52)/[(+2)X(-13)]
= (-52)/(-26)
= 2
2.(-12)X[(-20)/(-4)]
= (-12)X(5)
= -60
3.(+100)/[(-2)X(+5)]
=(+100)/(-10)
=-10
4.(-7.2)/[(-3.6)X(+5)]
=(-7.2)/(-18)
= 0.4
应该系甘~~~我在内地學咗用4年拉~~~
= (-52)/(-26)
= 2
2.(-12)X[(-20)/(-4)]
= (-12)X(5)
= -60
3.(+100)/[(-2)X(+5)]
=(+100)/(-10)
=-10
4.(-7.2)/[(-3.6)X(+5)]
=(-7.2)/(-18)
= 0.4
应该系甘~~~我在内地學咗用4年拉~~~
2007-09-27 2:22 am
1) (-52)/[(+2)X(-13)]
=(-52)/(-26)
=+2
2) (-12)X[(-20)/(-4)]
=(-12)X(+5)
=-70
3) (+100)/[(-2)X(+5)]
=(+100)/(-10)
=-10
4) (-7.2)/[(-3.6)X(+5)]
=(-7.2)/(-18)
=+4
希望幫到你^^
2007-09-26 18:25:28 補充：
只要記得負負得正,正正得正,正負得負,同負正得正就得啦!!努力學好數學牙!!!
2007-09-26 18:28:13 補充：
sor第4題漏了點,其實係+0.4以上果二位係岩既!!so sor=]
=(-52)/(-26)
=+2
2) (-12)X[(-20)/(-4)]
=(-12)X(+5)
=-70
3) (+100)/[(-2)X(+5)]
=(+100)/(-10)
=-10
4) (-7.2)/[(-3.6)X(+5)]
=(-7.2)/(-18)
=+4
希望幫到你^^
2007-09-26 18:25:28 補充：
只要記得負負得正,正正得正,正負得負,同負正得正就得啦!!努力學好數學牙!!!
2007-09-26 18:28:13 補充：
sor第4題漏了點,其實係+0.4以上果二位係岩既!!so sor=]
參考: 自己
2007-09-27 2:21 am
1.(-52)/[(+2)X(-13)]
= (-52)/(-26)
= 2
2.(-12)X[(-20)/(-4)]
= (-12)X(5)
= -60
3.(+100)/[(-2)X(+5)]
=(+100)/(-10)
=-10
4.(-7.2)/[(-3.6)X(+5)]
=(-7.2)/(-18)
= 0.4
計bracket sin..
remember 乘同除都係 正負得負，負負得正
= (-52)/(-26)
= 2
2.(-12)X[(-20)/(-4)]
= (-12)X(5)
= -60
3.(+100)/[(-2)X(+5)]
=(+100)/(-10)
=-10
4.(-7.2)/[(-3.6)X(+5)]
=(-7.2)/(-18)
= 0.4
計bracket sin..
remember 乘同除都係 正負得負，負負得正
參考: Me..F.4
收錄日期: 2021-04-13 19:05:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070926000051KK04044