Class 11MathematicsTrigonometrical EquationsRelation between sides and angles, Solutions of triangles
EasyIn $\Delta ABC$,$(a-b)^2 \cos^2 \frac{C}{2} + (a+b)^2 \sin^2 \frac{C}{2} =$
- A$b^2$
- B$c^2$
- C$a^2$
- D$a^2+b^2+c^2$
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DifficultKCET 2026
View SolutionIn triangle $ABC$,the value of $\sin 2A + \sin 2B + \sin 2C$ is equal to
Easy
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