3,0,1,5,1,5,7,2,49,,,
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3,0,1,5,1,5,7,2,49,,,
3,0,1,5,1,5,7,2,49,,,
3,0,1,5,1,5,7,2,49,,,
3,0,1,5,1,5,7,2,49,,,
先分组
(3,0,1)-----(3,0,3的0次方)
(5,1,5)-----(5,1,5的1次方)
(7,2,49)-----(7,2,7的2次方)
下一组就是9,3,9的3次方
3,0,1,5,1,5,7,2,49,,,
(2/7+3/2)÷9/49-1,5
1+2+8+5+22+3+4+6+37+7+9+0+49=?
1/1×2+1/3×5+1/5×7+.+1/49×51=?
1+3+5+7+… +49=
1/(3+3^1/2)+1/(5*3^1/2+3*5^1/2)+1/(7*5^1/2+5*7^1/2)+...+1/(49*47^1/2+47*49^1/2)
(7×1-3×1)+(7×3-3×2)+(7×5-3×3)+.+(7×49-3×25)(7×1-3×1)+(7×3-3×2)+(7×5-3×3)+.+(7×49-3×25)=简算
1/1*3+1/3*5+1/5*7+1/7*9+1/49*51=
1/1*3+1/3*5+1/5*7+1/7*9+.+1/49*51
3/4:7/2 求比值,1/2:2/3 5/7:25/49
3/4:7/2 化简比,1/2:2/3 5/7:25/49
1*2+2*3+3*4+4*5+5*6+6*7+.49*50=?
前50个自然数相乘也就是0+1+2+3+4+5+6+7+8+9+10+11.+47+48+49答案是什么错了是0*1*2*3*4*5*6*7*8*9*10......*47*48*49
1*2/1+2*3/1+3*4/1+.+2004*2005/1=1*3/1+3*5/1+5*7/1+.+49*51/1=
1/1*2+1/2*3+1/3*4+1/4*5+1/5*6+1/6*7+1/7*8...1/49*50
1/(1*3*5)+1/(2*4*6)+1/(3*5*7)+1/(4*6*8)+1/(5*7*9)---+1/(47*49*51)+
六年级数学题1/(1*2*3)+1/(2*3*4)+1/(3*4*5)+1/(4*5*6)+1/(5*6*7)+.+1/(48*49*50)=?诉求,
15/49除(5/7-3/14*1/3) 简算