简算:[(1*2*4+2*4*8+L+n.2n.4n)/(1*3*9+2*6*18+L=n.3n.9n)]^2简算:1.[(1*2*4+2*4*8+L+n.2n.4n)/(1*3*9+2*6*18+L=n.3n.9n)]^22.(1/11*13*15)+(1/13*15*17)+L+(1/29*31*33)3.(1+1/1*3)(1+1/2*4)(1+1/3*5)L(1+1/1998*2000)(1+1/1999*2001)4.(4/1*3)-(8/3*5)+(12/5*7)-(16/7*9)+L-(40/19*21)5.1+2+2^2+2^3+2^4+L+2^20106.1+(1/1+2)+(1/1+2+3)+(1/1+2+3+4)+L+(1/1+2+3+4+...+100)注解:“L”等于省略号,(X/Y)=Y分之X
问题描述:
简算:[(1*2*4+2*4*8+L+n.2n.4n)/(1*3*9+2*6*18+L=n.3n.9n)]^2
简算:
1.[(1*2*4+2*4*8+L+n.2n.4n)/(1*3*9+2*6*18+L=n.3n.9n)]^2
2.(1/11*13*15)+(1/13*15*17)+L+(1/29*31*33)
3.(1+1/1*3)(1+1/2*4)(1+1/3*5)L(1+1/1998*2000)(1+1/1999*2001)
4.(4/1*3)-(8/3*5)+(12/5*7)-(16/7*9)+L-(40/19*21)
5.1+2+2^2+2^3+2^4+L+2^2010
6.1+(1/1+2)+(1/1+2+3)+(1/1+2+3+4)+L+(1/1+2+3+4+...+100)
注解:“L”等于省略号,(X/Y)=Y分之X
答