Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If the system of equations `x-ky-z=0, kx-y-z=0, x+y-z=0` has a non – zero solution, then the possible values of k are - Sarthaks eConnect

If the system of equations `x-ky-z=0, kx-y-z=0, x+y-z=0` has a non – zero solution, then the possible values of k are

-1, 2

1, 2

0, 1

-1, 1