Ts Eamcet
Properties Of Triangles
TS EAMCET 2023 (Online) 13th May Morning Shift
MCQ+1 / -02023
In $\triangle A B C$, if $A$ is an acute angle, $b=6, c=9$ and $\sin A=\frac{2 \sqrt{14}}{9}$, then $3 a(\cos B+\cos C)=$
Ts Eamcet
TS EAMCET 2023 (Online) 13th May Morning Shift
In $\triangle A B C$, if $A$ is an acute angle, $b=6, c=9$ and $\sin A=\frac{2 \sqrt{14}}{9}$, then $3 a(\cos B+\cos C)=$