A triangle ABC is such that sin2A-B-12- If A- B- C are in A-P- then the angle A- B- C are respectively -

The correct option is A 5π12, π4, π3 sin (2A+B)=12 2A+B=π6 2B=A+C #160; #160; #160; #160; #160; #160; #160; #160; ...

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Conditional Identities

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Question

A triangle $A B C$ is such that $sin (2 A + B) = \frac{1}{2}$ . If $A, B, C$ are in $A . P .$ , then the angle $A, B, C$ are respectively :

\frac{5 π}{12}, \frac{π}{4}, \frac{π}{3}

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\frac{π}{4}, \frac{π}{3}, \frac{5 π}{12}

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\frac{π}{3}, \frac{π}{4}, \frac{5 π}{12}

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\frac{π}{3}, \frac{5 π}{12}, \frac{π}{4}

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