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In a triangle ABC, let BC = 1, AC=2 and ...

In a triangle ABC, let BC = 1, AC=2 and measure of angle C is 30°. Which of the following statement(s) is (are) correct? (A) 2 sinA =sin B (B) Length of side AB equals `5-2sqrt(3)` (C) Measure of angle A is less than `30^@` (D) Circumradius of triangle ABC is equal to length of side AB

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