9999乘以1001-10000^2=

9999乘以1001-10000^2= 27046=2乘以( )+7乘以( )+4乘以( )+6乘以( ) =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! 10000乘以100000000000000=? A=B乘以57 A乘以2等于B乘以（ ）A乘以5等于B乘以（ ）A乘以（）等于B乘以12 A乘以（）等于B乘以29 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 25乘以48=25乘以(4乘以2)=(25乘以4)乘以12=100乘以12=1200这是应用了什么知识 70642=7乘( )+6乘( )+4乘以( )+2乘以( ) 函数y=根号2乘以sin2x乘以cos2x是 8分之5乘以( )=( )乘以3分之2=0.1乘以( )=( )乘以12=1 解方程2乘以0.2x-3乘以0.3x+5乘以0.4x=0.3乘以5 9999乘以7778乘以3333乘以6666