If `[a-b2a+c2a-b3c+d]=[-1 5 0 13]` , find the value of `bdot`

If [(a-b,2a+c),(2a-b,3c+d)]=[(-1, 5),( 0, 13)] , find the value of bdot

If a+2b = 55 and a - 2b = -13 , find the value of b . A. 21 B. 14 C. 17 D. 19

If the origin is the centroid of a triangle ABC having vertices A(a ,1,3), B(-2, b ,-5)a n d C(4,7, c) , find the values of a , b , cdot

If -> a , -> b , -> c are unit vectors such that -> a+ -> b+ -> c= ->0 find the value of -> adot -> b+ -> bdot -> c+ -> cdot -> a .

If   ( a -5 )^2 + ( b - c )^2 + ( c - d )^2 + ( b + c + d - 9 )^2 = 0 , then find the value of ( a + b + c ) ( b + c + d ) is

"If A"= ({:(2, 3),(5, 1):}), B = ({:(a, b),(c, d):}) and AB = -13I, then find the value of a + b - c + d. (a) 5 (b) 3 (c) 2 (d) 1

if a=3,b=0,c=2 and d=1 ,find the vale 3a+3b-6c+4d

Consider the matrices : A=Consider the matrices : A=[(1,-2),(-1,3)] and B=[(a,b),(c,d)] If AB=[(2,9),(5,6)] , find the values of a,b,c and d.

In triangle ABC, if b=3, cos A=3/5 and cos B=5/13 then find the value of (5c)/2