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AP EAPCET 08-Jul-2022 Shift 2 Paper

Section: Mathematics

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Question : 3

Total: 160

If A and B are nxn square matrices such that (2A+B)2+(A−3B)2=5A2−2AB+10B2 then, ABAB=

‌
1
2
[(A−B)2+(A+B)2]
4AB
‌
1
2
[(A+B)2−(A−B)2]
A2B2

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