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∣∣∣∣∣1+a2−b22ab−2b2ab1−a2+b22a2b−2a1−a2−b2∣∣∣∣∣= |
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Answer» ∣∣ ∣ ∣∣1+a2−b22ab−2b2ab1−a2+b22a2b−2a1−a2−b2∣∣ ∣ ∣∣= |
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