(1-2)^1+(2-3)^2+(3-4)^3+(4-5)^4.+(2000-2001)^2000肿么算啊
(1-2)^1+(2-3)^2+(3-4)^3+(4-5)^4.+(2000-2001)^2000肿么算啊
巧算(1/(2/3)/(3/4)/(4/5)/(5/6)/./(1999/2000)/(2000/2001)/(2001
2003-2002+2001-2000+.+5-4+3-2+1
1-2+3-4+5-6+.+1999-2000+2001
1-2+3-4+5-6.+1999-2000+2001
(1+3+5+.+2001+2003)-(2+4+6+.+2000+2002)
1,2,3,4,5,4,3,2,1用加减乘除得出1999,2000,2001,2002
2002*2001-2001*2000+2000*1999-.-3*2+2*1
1/1*2+1/2*3+1/3*4+...+1/2000*1/2001=
1/1*2+1/2*3+1/3*4+.1/2000*2001
(1+3+5+.+2001)-(2+4+6+...2000) 5+8+11+14+...+29+32 2008+2004
1-2+3-4+5-6+…+1997-1998+1999-2000+2001简便运算