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# Engineering

For the system of linear equation  : x-2y=1,x-y+kz=-2,ky+4z=6,k\in R, consider the following statement (A) The system has unique solution if k\neq 2,k\neq -2 (B) The system has unique solution if k=-2 (C) The system has unique solution if k=2 (D) The system has no-solution if k=2 (E) The system has infinite number of solutions if k\neq -2 Which of the following statement are correct ?  
Option: 1 (B) and (E) only
Option: 2 (A) and (E) only
Option: 3 (A) and (D) only
Option: 4 (C) and (D) only

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