`{:(217x + 131y = 913),(131x + 217y = 827):}`

Evaluate x + y, if 217x + 131y = 913 and 131x + 217y = 827.

Solve: 217x+131y=913131x+217y=827

Solve: 217 x+131 y=913 131 x+217 y=827

If X and Y are the matrices of order 2xx2 each and 2x-3y=[{:(-7,0),(7,-13):}] and 3x+2y =[{:(9,13),(4,13):}] then what is Y equal to

If A = {(x, y) : y^2 = x, x, y in R} , B = {(x, y) : y = |x|, x, y in R} , then

If A = {(x, y) : x^2 = y, x, y in R} B = {(x, y) : y = |x|, x, y in R} then

If (2x+3,4y-3) = (9,13) then find x + y .

[x (cos y) / (x) + y (sin y) / (x)] y = [y (sin y) / (x) -x (cos y) / (x)] x ((dy) / (dx))