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If A, B, C are angles of an acute angle triangle. Then minimum value of ∣∣∣∣∣(tan B+tan C)2tan2Atan2Atan2B(tan C+tan A)2tan2Btan2Ctan2C(tan A+tan B)2∣∣∣∣∣ is |
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Answer» If A, B, C are angles of an acute angle triangle. Then minimum value of ∣∣ ∣ ∣∣(tan B+tan C)2tan2Atan2Atan2B(tan C+tan A)2tan2Btan2Ctan2C(tan A+tan B)2∣∣ ∣ ∣∣ is |
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