JEE Math Practice Question
If the following system of linear equations 2x + y + z = 5 x $$-$$ y + z = 3 x + y + az = b has no solution, then :
- A.$$a = - {1 \over 3},b \ne {7 \over 3}$$
- B.$$a \ne {1 \over 3},b = {7 \over 3}$$
- C.$$a \ne - {1 \over 3},b = {7 \over 3}$$
- D.$$a = {1 \over 3},b \ne {7 \over 3}$$
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