Class 11MathematicsTrigonometrical EquationsRelation between sides and angles, Solutions of triangles
MediumIn a $\Delta ABC$,side $b$ is equal to
- A$c \cos A + a \cos C$
- B$a \cos B + b \cos A$
- C$b \cos C + c \cos B$
- DNone of these
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View SolutionLet $a, b$ and $c$ denote the lengths of sides $BC, CA$ and $AB$ of $\triangle ABC$. In $\triangle ABC$,$\angle BAC = 30^{\circ}$ and $\angle ABC = 60^{\circ}$. Then $a: b: c$ is
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