矩阵的 急 1.在 K≠ 时,矩阵A={7,-2}是可逆的-8,k 2.If A=1,-4,8 ,then A^-1 (即A的负一次方)=0,1,50,0,1 3.If A=-5,-5,6 则 A的负一次方等于?-5,-4,7-1,-1,14.f(x)=AX^4+BX^3+CX^2+DX+E 过点(-3,189),(-2,-36),(0,6)
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![矩阵的 急 1.在 K≠ 时,矩阵A={7,-2}是可逆的-8,k 2.If A=1,-4,8 ,then A^-1 (即A的负一次方)=0,1,50,0,1 3.If A=-5,-5,6 则 A的负一次方等于?-5,-4,7-1,-1,14.f(x)=AX^4+BX^3+CX^2+DX+E 过点(-3,189),(-2,-36),(0,6)](/uploads/image/z/8641958-14-8.jpg?t=%E7%9F%A9%E9%98%B5%E7%9A%84+%E6%80%A5+1.%E5%9C%A8+K%E2%89%A0+%E6%97%B6%2C%E7%9F%A9%E9%98%B5A%3D%7B7%2C-2%7D%E6%98%AF%E5%8F%AF%E9%80%86%E7%9A%84-8%2Ck+2.If+A%3D1%2C-4%2C8+%2Cthen+A%5E-1+%EF%BC%88%E5%8D%B3A%E7%9A%84%E8%B4%9F%E4%B8%80%E6%AC%A1%E6%96%B9%EF%BC%89%3D0%2C1%2C50%2C0%2C1+3.If+A%3D-5%2C-5%2C6+%E5%88%99+A%E7%9A%84%E8%B4%9F%E4%B8%80%E6%AC%A1%E6%96%B9%E7%AD%89%E4%BA%8E%3F-5%2C-4%2C7-1%2C-1%2C14.f%EF%BC%88x%EF%BC%89%3DAX%5E4%2BBX%5E3%2BCX%5E2%2BDX%2BE+%E8%BF%87%E7%82%B9%EF%BC%88-3%2C189%EF%BC%89%2C%EF%BC%88-2%2C-36%EF%BC%89%2C%EF%BC%880%2C6%EF%BC%89)
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