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If A,B,C are the angles of a triangle, then the absolute value of ∣∣∣∣∣e−2iAeiCeiBeiCe−2iBeiAeiBeiAe−2iC∣∣∣∣∣ is |
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Answer» If A,B,C are the angles of a triangle, then the absolute value of ∣∣ ∣ ∣∣e−2iAeiCeiBeiCe−2iBeiAeiBeiAe−2iC∣∣ ∣ ∣∣ is |
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