观察下列等式,=1,=2乘以1,=3乘以2乘以1,=4乘以3乘以2乘以1,.,计算:100!/98!=
=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!
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=11²
1乘以2乘以3乘以4乘以5乘以.100积有几个零
27046=2乘以( )+7乘以( )+4乘以( )+6乘以( )
1+2乘以3+4乘以5+6乘以7+8乘以9=1005 在上面各式当中添上适当的括号使等式成立
1乘以2+2乘以3+3乘以4+4乘以5……+97乘以98+98乘以99+99乘以100等于多少
8分之5乘以( )=( )乘以3分之2=0.1乘以( )=( )乘以12=1
1乘以2乘以3乘以4乘以一直乘到100等于多少?
1乘以2乘以3乘以4再乘以几等于100?
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.
请你计算1乘以2乘以3乘以.乘以1991的乘积末端有几个零?
1乘以2乘以3分之1+2乘以3乘以4分之1+……+98乘以99乘以100分之1