(-40)^101x(0.25)^102
求(1--1/100)X(1-1/101)X(1--/102)X...X(1-1/2010).
(-1)x(-2)x(-3)+(-2)x(-3)x(-4)+……+(-100)x(-101)x(-102)
x-20%x=4 4x-75%=0.25 x÷四分之五=40% 20%x+30%x=120
(-1+1/100)x(-1+1/101)x(-1+1/102)x...x (-1+1/2011)+(-1+1/2012
(-1+1/100)x(-1+1/101)x(-1+1/102)x...x (-1+1/2011)计算
计算(-1+1/100)x(-1+1/101)x(-1+1/102)x...x(-1+1/2013)=
(-1+1/100)x(-1+1/101)x(-1+1/102)x...x (-1+1/2011)计算!
(-1+1/100)x(-1+1/101)x(-1+1/102)x...x(-1+1/2006)怎么做
x-0.25x=(180-x)-40 这个方程怎么解?
x-4x/3(101-x)
56-x =x- (40-x)
解方程 x-0.25=四分之一 四分之x=30% 4+0.7x=102 三分之二x+二分之一x=42