用单边 [tex=0.5x0.786]gdMkE6SnyZedYLxpUxdkaQ==[/tex] 变换解下列差分方程 [tex=12.5x1.357]tKQyZii5fwhwfN7rNngO+k6eJSt8B13imcroeVLyC7g=[/tex][tex=6.429x1.357]8Pjl7WW8t1RYjPKDw5G2mw==[/tex]

2022-06-26

用单边 [tex=0.5x0.786]gdMkE6SnyZedYLxpUxdkaQ==[/tex] 变换解下列差分方程 [tex=12.5x1.357]tKQyZii5fwhwfN7rNngO+k6eJSt8B13imcroeVLyC7g=[/tex][tex=6.429x1.357]8Pjl7WW8t1RYjPKDw5G2mw==[/tex]

答案：

 对差分方程两边取单边 [tex=0.5x0.786]gdMkE6SnyZedYLxpUxdkaQ==[/tex] 变换[tex=19.214x1.571]G7751JvBgneiIcpaooGcP0cxvW8O5OD+tpGe7DE7oDyoxYH1ZTffLWDHAdquOaAK67pJbOH0gqx+AAW5HGkDlw==[/tex][tex=7.786x2.214]nO+s204aYGe9Wb56MGN00lzW8NJb8xJ+3OXK7TiMvzA=[/tex]  将 [tex=6.429x1.357]8Pjl7WW8t1RYjPKDw5G2mw==[/tex]代人后整理得[tex=14.214x2.214]YC8GQEo4ZNNTvtg4hSguuczjUPlDdoI/Tv5Y/8DxhnpZhoAzG8OCYLoKZCGh6MPTJCsW+7/bojf6ysp17IU+A360d1gh+Q53mBwpz2zN5qs=[/tex]所以[tex=14.714x2.786]fvVmJv49+iNwGZkQqZuNBnfI1r4a53rytiasSi4Mi4wjdbwZegleDFljEYNIX3IznQy42RjZ7Ax5sCVHrdRyHdRbYFBGkmm7/9jOSoSed/g=[/tex]令[tex=15.0x2.714]V4xZq43bhBEiHektgTb+chKiZatJ/soHAHiTI5VRTAW8g4/sSrMVPpV30kn+1Wpx+GTfYX/xe2bN6ipWktjTKbA9mjpQnu/HgUrMhN+S8Ao=[/tex]可求得[tex=9.786x2.357]LDFk16in5IAgmY7L1QwoTjmyumuhY3GwUdWHkbNhq0OucOPyW0kQrak2YJe0iECm[/tex]所以[tex=23.929x2.714]fvVmJv49+iNwGZkQqZuNBnfI1r4a53rytiasSi4Mi4zt3kBN9Q7ZUtokUpaeIeRNN7xFnfyYng8dEbZ0hhtcZz/CfrkNLa6wge3JGzZYf3G8rolzcF+4x1ONlJXxVe+DaQruoUCSmlBuKr3wB5oxMKKMIyBXeb9jFRPrSxFxb4fCSXif1bW2zmYEN6fyZecwp5EyqltBZWXrEfffPpAbsPpvWsqaiuaWwt8UCPfjUodVdMbJXlZMch0lsD9tL9BN[/tex][tex=19.929x3.643]ieyy/WCg8Iaw6dRCXDRBby2KQnS8FAucoWraJH3uvXKlEURQHf67/y5mYJEHSQQkK0XfWfQTjcHGFDvDVCe6S//ZtLYV12Jt4vV6oQbuc6g2gGWIG6u9CTJdko3z1ZuJxTn2KFFmF0nB6aa47hjT5VCIdhvgevGS2pFty+xjLsUu2TTHb0q3tovo6bEqHB3JYb2zCraIf8PdDmLxITLauSmeZ2qOwleHFJRYhsxXu2wnaRrrrqQmy35gFXU2a9wx8bartnwnd4wpfvmHzMVlhA==[/tex][tex=1.857x1.357]iwAQsGrw/RCkBOOqgP2BHQ==[/tex] 收敛域为[tex=3.214x1.357]PUuDFtKsyF8TyXatKLGTlg==[/tex] 则 [tex=19.571x3.357]dh2YV+8UiM9k0tuQIRz4uS0LNLfqoo8y+7uwIDTRl0qowfunHP/csizDz1mg/asS224h6BCS4CqyTxI6BxLOONhNg2enUvAjOdRpRMe9puFZyRWCweKH5mKXoYG2fz/pQFCr4rcAO+4PmzFHIK6oZDUyBjK1K0d+xateslkafl0=[/tex]

举一反三

内容

0
对 [tex=0.643x0.786]/he/ol8BkDuTTL9yMPtH4Q==[/tex]的不同值，分别求出循环群[tex=1.143x1.214]StMMJ6qThnpokZJIPGrdFyP3vrLnUdltYxmLxjw8za8=[/tex]的所有生成元和所有子群。(1) 7; (2) 8; (3)10 ;(4) 14 ; (5) 15 (6) 18 。
1
判断下列命题是否为真：（1）[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex]（2）[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex]（3）[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex]（4）[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex]（5）[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex]（6）[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex]（7）若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex]，则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex]（8）若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex]，则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]
2
set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为？ A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
3
下列程序段的执行结果是（）。 x = 5: y = 7: z = 8 If x < y Then t = x: x = y: y = t End If If y < z Then t = y: y = z: z = t If x < y Then t = x: x = y: y = t End If End If Print x, y, z A: 8 5 7 B: 8 7 5 C: 5 7 8 D: 7 5 8
4
求下列函数的单调区间、凹凸区间、极值点、拐点和渐近线,并绘图(图略).(1) [tex=6.643x1.5]bfylM61K4fB2dxr0OSsfGnNoGCHA31PVTv+V6O1K8rw=[/tex](2)[tex=7.643x1.571]v8BogKFXW30N+HMJ7QR6DhxEDs5D0riUpoj095rhlGc=[/tex](3) [tex=3.714x2.143]X1YpNX45Pb+t3RD9Lv2Xa/npVx6iPUE04M2Y4K2k/cw=[/tex](4) [tex=5.071x3.0]4TWEbfJ+QFPbBo6PXWTsCrjc66tVrHBOTlDUBxhSpARz8/MfCO/nUo/gE3SyIffw[/tex](5)[tex=6.571x2.429]gt+k1kCw/+VFBVaKddmG6PvDvxiTdyZFXDwIPBeuGlw=[/tex](6)[tex=5.643x1.429]Hzyd6Qvm69qjRqgBIuKTx/cTmFyy56Dt2K/GC7NoCdc=[/tex](7) [tex=7.143x1.214]CwtdUElTamN1NqF0aKHeWGdaXEazoOnz3w3c67izzuE=[/tex](8)[tex=4.714x2.786]cxjZEag+Wbr67lAUIC3Slk2OV17yHgezOhFRferr5F0=[/tex].