Class 11MathematicsTrigonometrical EquationsRelation between sides and angles, Solutions of triangles
MediumIn a $\Delta ABC$,if ${c^2} + {a^2} - {b^2} = ac$,then $\angle B = $
- A$\frac{\pi}{6}$
- B$\frac{\pi}{4}$
- C$\frac{\pi}{3}$
- DNone of these
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Medium
View SolutionIf in a $\triangle ABC$, $r_1 < r_2 < r_3$, then:
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