(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)
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(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)题
(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)
(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)
(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)
题目呢,图呢,.
2/3,1,6/5,4/3,( ),3/2
0-(+2/1)-(+5/2)-(-4/3)-(+4/1)-(-5/3)
(1-3/2*4)*(1-3/3*5)*...*(1-3/7*9)
(1) (2) (3) (4) (5)
1)2)3)4)5)
1) 2) 3) 4) 5)
(2*3*4*5)*(1/2-1/3-1/4-1/5)
5/9+(3/4-1/2)
4/5+(3/8-1/2)
1/2+(-2/3)-(-4/5)+(-1/2)-(+1/3)
(1/3+2/3)+(1/4+2/4+3/4)+(1/5+2/5+3/5+4/5)+.+(1/100+.99/100)=
-1-2又1/3+4又1/5除以(-3)除以(-3/5)
1,2/3,5/3,4/3,7/3,2,3(),()找规律
-1-(-2)-(+3)+(-4)-(-5)
(1-2)(1-3)(3-4)(4-5)...(19-20)=
(4/5+1/4)÷2/3+3/10
1.(1+1/2+1/3+1/4)*(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4)=2.(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)=
|-5 1/2|×(1/3-1/2)×3/11÷(1-1/4)