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The system x+y+z=6, x+2y+3z=10, x+2y+lam...

The system `x+y+z=6, x+2y+3z=10, x+2y+lamdaz=gamma` of simultaneous equations has (A) a unique solutions if `lamda!=3` (B) no solution if `lamda=3, gamma!=10` (C) infinitely many solutions if `lamda=3,gamma=10` (D) none of these

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