-√0.16*√25/16+√(13^2-12^2)*√1/4*√1/5
=-√16/100*25/16+√5*1/4*5
=-√1/4+√1/4
=0怎么会等于0 ....-√0.16*√25/16+√(13^2-12^2)*√1/4*√1/5=-√【(16/100)(*25/16)】+√【25*1/(4*5)】=-√1/4+√5/4=√5/2-1/213^2-12^2=169-144=25=5^2不好意思!
负根号0.16×根号1又16分之9+根号13的平方-12的平方×根号又4分之1×根号5分之1
负根号0.16×根号1又16分之9+根号13的平方-12的平方×根号又4分之1×根号5分之1
数学人气:271 ℃时间:2020-02-01 07:29:19
优质解答
我来回答
类似推荐
猜你喜欢
- 1测量电阻的几种方法
- 2The little girl goes to school () her father's bike every day.
- 3(1/根号2+1+1/根号3+根号2+1/根号4+根号3+…+1/根号2012+根号2011)(根号2012+1),计算
- 42007除以2007/2008!等于?
- 5She is an American girl 还是 She is American girl
- 6in the end he realized he had realized his dream,but at the cost of his life.请翻译,
- 7问几道数学题.!急呐!
- 8一个水笼头滴水,15分钟就滴水200毫升,每天近有20升水,一年就会浪费多少水?
- 9My friend asked me to go to the restaurant with them.
- 10一根绳子九分之八米,用去四分之一米,还剩( )米.一根绳子长九分之八米,用去四分之一,还剩( )米