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[" In "/ABC,/C=2/A" and "AC=2BC" .Then t...

[" In "/_ABC,/_C=2/_A" and "AC=2BC" .Then the "],[" value of "(2(a^(2)+b^(2)+c^(2)))/(R^(2))" (where "R" is circumradius of "],[" triangle) is: "]

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