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MATH / Let a, b, c, and d be real numbers such that a²+b²=8 and c²+d²=13. Find (ad−bc)²+(ac+bd)². · Discussion

Discussing Let a, b, c, and d be real numbers such that a²+b²=8 and c²+d²=13. Find (ad−bc)²+(ac+bd)². · MATH

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