几道初一的找规律数学题【1】1^2-1^2=0,2^2-0^2=4,3^2-(-1)^2=8,4^2-(-2)^2=12,……以上各式的规律为( ),2005^2-(-2003)^2=( )【2】(-3)^1=-3,(-3)^2=9,(-3)^3=-27,(-3)^4=81……据以上规律,可知
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![几道初一的找规律数学题【1】1^2-1^2=0,2^2-0^2=4,3^2-(-1)^2=8,4^2-(-2)^2=12,……以上各式的规律为( ),2005^2-(-2003)^2=( )【2】(-3)^1=-3,(-3)^2=9,(-3)^3=-27,(-3)^4=81……据以上规律,可知](/uploads/image/z/111296-56-6.jpg?t=%E5%87%A0%E9%81%93%E5%88%9D%E4%B8%80%E7%9A%84%E6%89%BE%E8%A7%84%E5%BE%8B%E6%95%B0%E5%AD%A6%E9%A2%98%E3%80%901%E3%80%911%5E2-1%5E2%3D0%2C2%5E2-0%5E2%3D4%2C3%5E2-%EF%BC%88-1%EF%BC%89%5E2%3D8%2C4%5E2-%EF%BC%88-2%EF%BC%89%5E2%3D12%2C%E2%80%A6%E2%80%A6%E4%BB%A5%E4%B8%8A%E5%90%84%E5%BC%8F%E7%9A%84%E8%A7%84%E5%BE%8B%E4%B8%BA%EF%BC%88+%EF%BC%89%2C2005%5E2-%EF%BC%88-2003%EF%BC%89%5E2%3D%EF%BC%88+%EF%BC%89%E3%80%902%E3%80%91%EF%BC%88-3%EF%BC%89%5E1%3D-3%2C%EF%BC%88-3%EF%BC%89%5E2%3D9%2C%EF%BC%88-3%EF%BC%89%5E3%3D-27%2C%EF%BC%88-3%29%5E4%3D81%E2%80%A6%E2%80%A6%E6%8D%AE%E4%BB%A5%E4%B8%8A%E8%A7%84%E5%BE%8B%2C%E5%8F%AF%E7%9F%A5)
几道初一的找规律数学题【1】1^2-1^2=0,2^2-0^2=4,3^2-(-1)^2=8,4^2-(-2)^2=12,……以上各式的规律为( ),2005^2-(-2003)^2=( )【2】(-3)^1=-3,(-3)^2=9,(-3)^3=-27,(-3)^4=81……据以上规律,可知
几道初一的找规律数学题
【1】1^2-1^2=0,2^2-0^2=4,3^2-(-1)^2=8,4^2-(-2)^2=12,……
以上各式的规律为( ),2005^2-(-2003)^2=( )
【2】(-3)^1=-3,(-3)^2=9,(-3)^3=-27,(-3)^4=81……
据以上规律,可知(-3)^2004+(-3)^2005的个位数字是( )
【3】观察下列常数项:0,3x,-8x,15x,-24x……
按此规律写出第十个单项式是( ),第n个是( )
几道初一的找规律数学题【1】1^2-1^2=0,2^2-0^2=4,3^2-(-1)^2=8,4^2-(-2)^2=12,……以上各式的规律为( ),2005^2-(-2003)^2=( )【2】(-3)^1=-3,(-3)^2=9,(-3)^3=-27,(-3)^4=81……据以上规律,可知
【1】1^2-1^2=0,2^2-0^2=4,3^2-(-1)^2=8,4^2-(-2)^2=12,……
以上各式的规律为:n²-(2-n)²=4(n-1)
2005^2-(-2003)^2=4(2005-1)=8016
【2】(-3)^1=-3,(-3)^2=9,(-3)^3=-27,(-3)^4=81……
据以上规律,可知(-3)^2004+(-3)^2005的个位数字是2.
【3】观察下列常数项:0,3x,-8x,15x,-24x……
按此规律写出第十个单项式是:99x ,第n个是:(-1)^n*(n²-1)x