Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Easy$ABC$ is a triangle such that $\sin(2A + B) = \sin(C - A) = -\sin(B + 2C) = \frac{1}{2}$. If $A, B,$ and $C$ are in $A.P.$,then $A, B,$ and $C$ are:
- A$30^o, 60^o, 90^o$
- B$45^o, 60^o, 75^o$
- C$45^o, 45^o, 90^o$
- D$60^o, 60^o, 60^o$
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