(-3)乘以5/6乘以(-4/5)乘以(-1/4)

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(-3)乘以5/6乘以(-4/5)乘以(-1/4)
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(-3)乘以5/6乘以(-4/5)乘以(-1/4)
(-3)乘以5/6乘以(-4/5)乘以(-1/4)

(-3)乘以5/6乘以(-4/5)乘以(-1/4)

收起

=-1/2
约去5、4、3后就得结果了。

等于负2乘以负4/5乘负1/4

1乘以2乘以3乘以4乘以5乘以...乘以2010的末尾有( )个连续的零. (-3)乘以5/6乘以(-4/5)乘以(-1/4) 观察1乘以2乘以3乘以4+1=25=5² 2乘以3乘以4乘以5+1=121=11²3乘以4乘以5乘以6+1=361=19²(1)计算5乘以6乘以7乘以8+1的结果是多少?(2)由此你能推出一般的结论吗? 1乘以2乘以3+2乘以3乘以4+3乘以4乘以5+...+7乘以8乘以9 (-4)乘以5乘以(-0.25)=? (7/10+4/3)乘以5;135乘以8/9乘以3/4;6/11乘以7/8-6/8乘以6/11 (1-1/2)乘以(1-1/3)乘以(1-1/4)乘以(1-1/5)乘以(1-1/6)乘以(1-1/7)的计算过程 0除以3乘以4乘以5乘以6乘以7乘以8乘以9乘以10除以3除以2等于 6/7乘以( )=3/5乘以( )=9乘以( )=0.2乘以( )=1 =3乘以2乘以1,=4乘以3乘以2乘以1,=5乘以4乘以3乘以2乘以1,那么100!除以99! 1平方乘以2平方乘以3平方乘以4平方乘以5平方乘以6平方等于 1乘以2乘以3乘以4乘以5乘以.100积有几个零 0.25乘以5乘以4乘以125 6分之5+3分之4的和乘以18=()乘以()+()乘以()=()+()=() 质数和完全平方数猜想4乘以2加1等于9.4乘以2乘以3加1等于25.4乘以2乘以3乘以5加1等于121.4乘以2乘以3乘以5乘以7加1等于841.猜想:请问4乘以由小到大排列的质数再加1后(质数从二开始),一定是 一乘以二乘以三分之一加2乘以3乘以4分之一+3乘以4乘以5分之1+……+48乘以49乘以50分之1. 2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少 巧算、要巧算. 20分之7乘以6表示( ) 4分之3乘以6分之5表示( )