算一算:1×2×3×4+1,3×4×5×6+1,4×5×6×7+1.能得到什么规律
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 17:33:44
![算一算:1×2×3×4+1,3×4×5×6+1,4×5×6×7+1.能得到什么规律](/uploads/image/z/5179818-66-8.jpg?t=%E7%AE%97%E4%B8%80%E7%AE%97%EF%BC%9A1%C3%972%C3%973%C3%974%2B1%2C3%C3%974%C3%975%C3%976%2B1%2C4%C3%975%C3%976%C3%977%2B1.%E8%83%BD%E5%BE%97%E5%88%B0%E4%BB%80%E4%B9%88%E8%A7%84%E5%BE%8B)
算一算:1×2×3×4+1,3×4×5×6+1,4×5×6×7+1.能得到什么规律
算一算:1×2×3×4+1,3×4×5×6+1,4×5×6×7+1.能得到什么规律
算一算:1×2×3×4+1,3×4×5×6+1,4×5×6×7+1.能得到什么规律
分别是25,361,841
规律:1×2×3×4+1=(1×4+1)^2 3×4×5×6+1=(3×6+1)^2 4×5×6×7+1=(4×7+1)^2
猜测:(n-1)n(n+1)(n+2)+1=[(n-1)(n+2)+1]^2 其中n>=2
算一算:1×2×3×4+1,3×4×5×6+1,4×5×6×7+1.能得到什么规律
算一算,并找出规律1/9 2/9 3/9 4/9 5/9 6/9 7/9 8/9
算一算,想一想,填一填. 【数学题】题目见补充↓↓算一算,想一想,填一填.1+2+1=41+2+3+2+1=91+2+3+4+3+2+1=161+2+3+4+5+4+3+2+1=( )1+2+3+4+……+(n-1)+n+(n-1)+……+4+3+2+1=( )快点~~~~3Q~~~~~~又好又快的
4、5、1、2、3、4、5
1+1 2+2 3+3 4+4 5+5
1,2,3,4,5
1,2,3,4,5,
1 2 3 4 5
1,2,3,4,5
1,2,3,4,5,
1 2 3 4 5
1,2,3,4,5,
.1,2,3,4,5,
1,2,3,4,5,
1,2,3,4,5,
1 2 3 4 5
1、2、3、4、5
1,2,3,4,5,