已知 [tex=6.214x1.357]F2lPEgU0DDjAVPaQwV90zw==[/tex][tex=3.714x2.357]KmuOFCNn1qeMaoZF7v9vsOEHDs2mxwauSGlqf3UsUJw=[/tex], 试求 [tex=3.5x1.286]ML9kv+JYg27IgZdePXTFOG+CFigGhNhYUF3pnVD8hTI=[/tex]
举一反三
- 求以下函数的函数值:[tex=12.0x1.929]S22g9AGPB+/qBNCNm047imswUiJKcY61GAD2M3wcCkNbiASL7xRkYQ9HZv6RALCZ[/tex], 求 [tex=3.5x1.286]ML9kv+JYg27IgZdePXTFOG+CFigGhNhYUF3pnVD8hTI=[/tex].
- 已知3阶矩阵A与3维列向量 x 满足[tex=6.857x1.357]zd0nq0IiNsY0hFTyLJHQy4eC+A8zUY14VqChcVve0aM=[/tex],且向量组[tex=0.714x0.786]Qp78QkdFrqytlOsANWrP9w==[/tex],[tex=3.5x1.429]c2YtesCJSYo0KOSy0rMECg==[/tex] (1)记[tex=10.643x1.357]3tyZrBE07WCx0ZFK2Y3aVjbjYUrJ/5Q0lIjkUE1dgc8=[/tex],求三阶矩阵B,使AP= PB;(2)求[tex=1.357x1.357]0awZUhfhOcjHk6LSkdT6Gw==[/tex]
- 已知[tex=9.786x1.357]X+B4/DETiyTANdqJ6QHz/8ml1m1vZqM3S9/DWVbTRsmydpv6zXYtTmH+Qd2fJrQz[/tex],试求:(1)[tex=3.214x1.357]MqtL7woeR+qgu+70wXALUq3tAyYcABseoz5Nztl37OQfyHPkvu450gfOIK3FDTVV[/tex](2)[tex=8.643x1.5]kZt34G1gy0D1tWYo0EN8DntPg2WqItPETJ8vOvGdIKuFf2p1n9qmibB/uplG/K+p[/tex](3)[tex=9.5x1.5]KI7kGzFyo7pcv4RjKJwUxaJ5BWOL+X/0lQnH6q3EjCECJnNz9nrzWW5ZHBsEnkDr[/tex].
- 若:(1)函数 f(x)在点[tex=3.714x1.357]7VByCIzkNySq3s2l9I6f5zccNJDeV+6SQrVr3iwjgB0=[/tex]有导数,而函数g(x)在点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]没有导数;(2)函数f(x)在点[tex=3.714x1.357]7VByCIzkNySq3s2l9I6f5zccNJDeV+6SQrVr3iwjgB0=[/tex]没有导数,而函数g(x)在点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]有导数;(3)函数f(x)在点[tex=3.714x1.357]7VByCIzkNySq3s2l9I6f5zccNJDeV+6SQrVr3iwjgB0=[/tex]没有导数及函数g(x)在点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]没有导数,则函数[tex=5.643x1.357]GmtX7Vop79exGU/rpqXUYw==[/tex]在已知点[tex=2.286x1.0]DSJKaWfJALImFxxTg/8qhA==[/tex]的可微性怎样?
- 求下列函数的导函数:(1) [tex=5.0x2.357]X/CieCDGJ7iPQ3YFWuscHxHrcIE/dPFa9tFyiJXze8A=[/tex](2)[tex=6.643x1.714]Oj74y/L+OxY81QME5JWMcl+7PZ2FGQswwvjgVhjq1Dmb6dBU0oAjZBW7eFBVjqo6[/tex]