化简 (3+1)(3^2+1)(3^4+1)(3^6+1)
化简 (3+1)(3^2+1)(3^4+1)(3^6+1)
化简1/ ×+1/3-×
化简1/2!+2/3!+3/4!+...+(n-1)/n!
化简:1/1*2+1/2*3+1/3*4+1/4*5+1/5*6+1/6*7+1/7*8+1/8*9+1/9*10
化简:2/3x>-1/3x-6 4x<6x-3
2√1/3化简
化简:(1/3a-3/4b)^2-(1/3a+3/4b)^2
已知3(5X-2)-5>4X-6(X-1),化简|1-3X|-|1+3X|
已知4x-6(x+1)>3(5x+2)+5,化简|3x+1|-|1-3x|
化简1^3+2^3+3^3+...+n^3
化简:1/(n+1)(n+2)+1/(n+2)(n+3)+1/(n+3)(n+4)
化简:1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)