A) Infinite number of solutions
B) Exactly 3 solutions
C) a unique solution
D) No solution
Correct Answer: D
Solution :
\[\Delta =\left| \begin{matrix} 1 & 2 & 1 \\ 2 & 3 & 1 \\ 3 & 5 & 2 \\ \end{matrix} \right|=1(1)-2(1)+1(1)=0\] \[{{\Delta }_{1}}=\left| \begin{matrix} 3 & 2 & 1 \\ 3 & 3 & 1 \\ 1 & 5 & 2 \\ \end{matrix} \right|=3(1)-2(5)+1(12)=5\] \[{{\Delta }_{1}}\ne 0\] When\[\Delta =0\]and if\[{{\Delta }_{1}},{{\Delta }_{2}},{{\Delta }_{3}},\]are not zero then no solutionYou need to login to perform this action.
You will be redirected in
3 sec