Class 11MathematicsTrigonometrical EquationsRelation between sides and angles, Solutions of triangles
DifficultIn $\triangle ABC$, with usual notations, if $\Delta$ denotes the area of triangle $ABC$, then the value of $2s(b + c - a) \tan(\frac{A}{2})$ is equal to ...
- A$\Delta$
- B$2\Delta$
- C$3\Delta$
- D$4\Delta$
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Similar Questions
In a $\Delta ABC$,if $b + c = 3a$,then the value of $\cot\, \frac{B}{2} \cdot \cot\, \frac{C}{2}$ is equal to:
If one side of a triangle is double the other and the angles opposite to these sides differ by $60^{\circ}$,then the triangle is
MediumKCET 2009
View SolutionIn a triangle $ABC$,with usual notation,$\angle B = \pi/3$ and $\angle C = \pi/4$. If $D$ divides $BC$ internally in the ratio $1:3$,find the value of $\frac{\sin \angle BAD}{\sin \angle CAD}$.
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DifficultAP EAMCET 2014
View SolutionIn a triangle $ABC$,with usual notations,if $\tan \left(\frac{A}{2}\right) = \frac{5}{6}$ and $\tan \left(\frac{C}{2}\right) = \frac{2}{5}$,then:
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