<p>设矩阵<img src="https://file.gaojiufeng.cn/learnAppQuestion/b3/5e/b35ee3d9f0e2dc6cce5a9bc169a35560.jpg" style="width: 100%;height: auto;">，则二次型<img src="https://file.gaojiufeng.cn/learnAppQuestion/37/50/3750a0b9e6473bdd81221c48a88f1986.jpg" style="width: 100%;height: auto;">的规范形为</p>