A) 1
B) 2
C) 5
D) None of these
Correct Answer: D
Solution :
The given system of equation is \[2x+y-5=0\] \[x-2y+1=0\] and \[2x-14y-a=0\] This system is consistent. \[\therefore \] \[\left| \begin{matrix} 2 & 1 & -5 \\ 1 & -2 & 1 \\ 2 & -14 & -a \\ \end{matrix} \right|=0\] \[\Rightarrow \] \[2(2a+14)-1(-a-2)-5(-14+4)=0\] \[\Rightarrow \] \[4a+28+a+2+50=0\] \[\Rightarrow \] \[5a=-80\] \[\Rightarrow \] \[a=-16\]You need to login to perform this action.
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