题目内容：
已知二次型
的秩为2。(1)求a的值；
(2)求f经正交变换化成的标准形．
参考答案：
答案解析：
简答题：已知二次型的秩为2。(1)求a的值；(2)求f经正交变换化成的标准形．
- 题目分类：工程数学-线性代数
- 题目类型：简答题
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的秩为2。(1)求a的值；
(2)求f经正交变换化成的标准形．
的秩为2。(1)求a的值；
(2)求f经正交变换化成的标准形．
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根据下列选项，请回答题：
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