设矩阵,则二次型 ,则二次型 ,则二次型
设矩阵,则二次型
设矩阵,则二次型的规范形为
A.
B.
C.
D.
正确答案是D
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Passage 3 Questions 11 to 15 are based on the following passage. Let us think about what situations people usually see as stressful. I will not touch on health issues, job loss, divorce, and other similar situations