In ` A B C ,=` if `(a+b+c)(a-b+c)=3a c ,` then find `/_Bdot`

A B C D is a rhombus. If /_A C B=40^0, find /_A D Bdot

If the sides of a triangle are b - 3a + 2c , a + 3b - 3c and 2a - b + c , then find its perimeter .

If B = 3A and A = C, then find B : C.

(i) If 3A = 4B = 6C , find : A : B : C . (ii) If 2a = 3b and 4b = 5c , find: a : c .

In a \ A B C ,\ A D bisects /_A\ a n d\ /_C >/_Bdot Prove that /_A D B >\ /_A D C .

If | vec a|+| vec b|=| vec c| and vec a+ vec b= vec c , then find the angle between vec a and vec bdot

If | vec a|+| vec b|=| vec c| and vec a+ vec b= vec c , then find the angle between vec a and vec bdot

If in any Delta A B C ,\ /_C=105^0,/_B=45^0, a=2, then find bdot

If | vec a|+| vec b|=| vec c| and vec a+ vec b= vec c , then find the angle between vec a and vec bdot

If A=[(1, 2),( 0, 3)] is written as B+C , where B is a symmetric matrix and C is a skew-symmetric matrix, then find Bdot