证明正定矩阵1 a a^2.a^Ta 1 a .a^T-1a^2 a .a^T-2.a^T a^T-1 .1

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证明正定矩阵1aa^2.a^Ta1a.a^T-1a^2a.a^T-2.a^Ta^T-1.1证明正定矩阵1aa^2.a^Ta1a.a^T-1a^2a.a^T-2.a^Ta^T-1.1证明正定矩阵1aa^

证明正定矩阵1 a a^2.a^Ta 1 a .a^T-1a^2 a .a^T-2.a^T a^T-1 .1
证明正定矩阵
1 a a^2.a^T
a 1 a .a^T-1
a^2 a .a^T-2
.
a^T a^T-1 .1

证明正定矩阵1 a a^2.a^Ta 1 a .a^T-1a^2 a .a^T-2.a^T a^T-1 .1
需要加上-1加上条件之后验证顺序主子式大于0即可