[3又1/4-(0.2+1/3)×3.5](6.05+1/20)简算答案要正确,蟹蟹.2 36×234.5+256/25÷2/11110+6543×3又5/3(2/11×13)+(2/13×15)+(2/15×17)+(2/17×19)+(2/19×21)+(1/21)= 3 (7/13)×(5/8)+(2/13)×(7/16)
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![[3又1/4-(0.2+1/3)×3.5](6.05+1/20)简算答案要正确,蟹蟹.2 36×234.5+256/25÷2/11110+6543×3又5/3(2/11×13)+(2/13×15)+(2/15×17)+(2/17×19)+(2/19×21)+(1/21)= 3 (7/13)×(5/8)+(2/13)×(7/16)](/uploads/image/z/201176-8-6.jpg?t=%5B3%E5%8F%881%2F4-%280.2%2B1%2F3%29%C3%973.5%5D%286.05%2B1%2F20%29%E7%AE%80%E7%AE%97%E7%AD%94%E6%A1%88%E8%A6%81%E6%AD%A3%E7%A1%AE%2C%E8%9F%B9%E8%9F%B9.2+36%C3%97234.5%2B256%2F25%C3%B72%2F11110%2B6543%C3%973%E5%8F%885%2F3%EF%BC%882%2F11%C3%9713%EF%BC%89%EF%BC%8B%EF%BC%882%2F13%C3%9715%EF%BC%89%EF%BC%8B%EF%BC%882%2F15%C3%9717%EF%BC%89%EF%BC%8B%EF%BC%882%2F17%C3%9719%EF%BC%89%EF%BC%8B%EF%BC%882%2F19%C3%9721%EF%BC%89%EF%BC%8B%EF%BC%881%2F21%EF%BC%89%3D+3+%EF%BC%887%2F13%EF%BC%89%C3%97%EF%BC%885%2F8%EF%BC%89%EF%BC%8B%EF%BC%882%2F13%EF%BC%89%C3%97%EF%BC%887%2F16%EF%BC%89)
[3又1/4-(0.2+1/3)×3.5](6.05+1/20)简算答案要正确,蟹蟹.2 36×234.5+256/25÷2/11110+6543×3又5/3(2/11×13)+(2/13×15)+(2/15×17)+(2/17×19)+(2/19×21)+(1/21)= 3 (7/13)×(5/8)+(2/13)×(7/16)
[3又1/4-(0.2+1/3)×3.5](6.05+1/20)简算
答案要正确,蟹蟹.
2 36×234.5+256/25÷2/11110+6543×3又5/3(2/11×13)+(2/13×15)+(2/15×17)+(2/17×19)+(2/19×21)+(1/21)=
3 (7/13)×(5/8)+(2/13)×(7/16)-(1/13)×(3又1/2)=
4 (1+1/1×3)×(1+1/2×4)×……×(1+1/8×10)=
5(1+2/2)×(1+2+3/2+3)×(1+2+3+4/2+3+4)×……×(1+2+……+2001/2+3+……+2001)=
6 36×234.5+256/25÷2/11110+6543×3又5/3=
[3又1/4-(0.2+1/3)×3.5](6.05+1/20)简算答案要正确,蟹蟹.2 36×234.5+256/25÷2/11110+6543×3又5/3(2/11×13)+(2/13×15)+(2/15×17)+(2/17×19)+(2/19×21)+(1/21)= 3 (7/13)×(5/8)+(2/13)×(7/16)
(2/11×13)+(2/13×15)+(2/15×17)+(2/17×19)+(2/19×21)+(1/21)
=1/11-1/13+1/13-1/15+1/15-1/17+1/17-1/19+1/19-1/21+1/21
=1/11;
(7/13)×(5/8)+(2/13)×(7/16)-(1/13)×(3又1/2)
=7/13*5/8+7/13*2/16-1/13*7/2
=7/13*(5/8+2/16-1/2)
=7/13*1/4
=7/52;
(1+1/1×3)×(1+1/2×4)×……×(1+1/8×10)
=2*2*3*3*4*4*5*5*6*6*7*7*8*8*9*9/1*2*3*4*5*6*7*8*3*4*5*6*7*8*9*10
=9/5;
(1+2/2)×(1+2+3/2+3)×(1+2+3+4/2+3+4)×……×(1+2+……+2001/2+3+……+2001)
=6/4*12/10*20/18*(n+1)(n+2)/n(n+3)*...*2001*2002/2000*2003
=(2*3*3*4*4*5*...**2001*2002)/(1*2*3*...*2000*4*5*6*...*2003)
=2001*3/2003
=6003/2003.