1/2 X 2/3 X 3/4 X……99/100 X 100/101
1x+2x+3x+4x+5x+6x+7x…+99x=100
1X+2X+3X…+98X+99X+100X=50500X X等于多少?
1+x+x^2+x^3+.+x^99+x^100
1/2 X 2/3 X 3/4 X……99/100 X 100/101
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
请问1+x+2x+3x…99x+100x等于多少.
已知x^4+x^3+x^3+x^2+x^1+1=0,求x^100+x^99+x^98+x^97+x^96的值
1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+……+1/(x+99)(x+100)
方程(1X+2X+3X…+98X+99X+100X=50500X)请问X等于多少?
x-2x+3x-4x+...+99x-100x=25
已知x^4+x^3+x^2+x^2+1=0,求x^100+x^99+x^98+x^97+x^96的值
x^4+X^3+X^2+X^1+1=0求x^100+X^99+X^98+X^97+X^96的值