Question

x +
Find the values of a for which the equations
y + z = 3;
x + 2 y + 2 z = 6;
x + ay + 3 z = 2 have
(i) no solution and
(ii) unique solution.

Answer 1

Answer:

x +

Find the values of a for which the equations

y + z = 3;

x + 2 y + 2 z = 6;

x + ay + 3 z = 2 have

(i) no solution and

(ii) unique solution.