Find the value of `a+b+c+d`

In the given figure, /_BCD = 43 ^(@) and /_BAE = 62 ^(@) . Find the values of a,b,c and d .

Find the values of a, b, c, and d from the following equation: [2a+b a-2b5c-d4c+3d]=[4-3 11 24]

If A=[[1,0],[2,1]] and A^(2012)=[[a,b],[c,d]] then find the values of a,b,c and d.

Find the values of a,b,c and d, if 3[{:(a,b),(c,d):}]=[{:(a,6),(-1,2d):}]+[{:(4,a+b),(c+d,3):}] .

Find the value of a,b,c and d from the equation: ,2a+c[[a-b,2a+c2a-b,3c+d]]=[[-1,50,13]]

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

Find the value of a,b,c and d from equation : [(a-b,2a+c),(2a-b,3c+d)] = [(-1,5),(0,13)]

If the numbers a, b, c, d, e are in arithmetic progression then find the value of a - 4b + 6c - 4d + e.

Find the values of a,b,c and d from the following equations: [[2a+b,a-2b5c-d,4c+3d]]=[[4,-311,24]]

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.