Class 11MathematicsTrigonometrical EquationsRelation between sides and angles, Solutions of triangles
EasyWith usual notations,in any $\triangle ABC$,if $a \cos B = b \cos A$,then the triangle is:
- Aan isosceles triangle
- Ban equilateral triangle
- Ca right-angled triangle
- Da scalene triangle
Explore More
Similar Questions
In a $\Delta ABC$,if $b = 2$,$C = 60^\circ$,and $c = \sqrt{6}$,then $a =$
Easy
View SolutionIn triangle $ABC$,if $BC$ is the hypotenuse,then $r_2 + r_3 =$
In a triangle $ABC$,$s\left[\frac{r_1-r}{a}+\frac{r_2-r}{b}+\frac{r_3-r}{c}\right]=$
Two sides of a triangle are given by the roots of the equation $x^2-5x+6=0$ and the angle between the sides is $\frac{\pi}{3}$. Then,the perimeter of the triangle is
In a $\triangle ABC$,if $r_1=12, r_2=18$ and $r_3=36$,then $b=$
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo