[" 18."5x+2y=2k],[2(k+1)x+ky=(3k+4)]

k x + 3y = k - 3, 12 x + ky = k

{:(2x + (k - 2)y = k),(6x + (2k - 1) y = 2k + 5):}

For what values of k is the system of equations k x + 3y = k - 2 12 x + ky = k inconsistent ?

{:(2x + 3y = 2),((k + 2)x + (2k + 1)y = 2(k - 1)):}

If the straight lines x+2y=3, 2x+3y=5 and k^(2)x+ky=-1 represent a triangle which is right - angled, then the value of k are k_(1) and k_(2) . The value of |(k_(1)+k_(2))/(k_(1)-k_(2))| is

If the straight lines x+2y=3, 2x+3y=5 and k^(2)x+ky=-1 represent a triangle which is right - angled, then the value of k are k_(1) and k_(2) . The value of |(k_(1)+k_(2))/(k_(1)-k_(2))| is

Find the value of k, if the pair of linear equations 2x-3y=8" and "2(k-4)x-ky=k+3 are inconsistent.

Find the value k if the following equations are consistent (k-2)x+(k-1)y=17,(k-1)x+(k-2)y=18 and x+y=5