TS EAMCET · Maths · Matrices
The rank of the matrix \(\left[\begin{array}{cccc}3 & 2 & 1 & -4 \\ 2 & 3 & 0 & -1 \\ 1 & -6 & 3 & -8\end{array}\right]\) is
- A 1
- B 2
- C 3
- D 4
Answer & Solution
Correct Answer
(B) 2
Step-by-step Solution
Detailed explanation
Let \(A=\left[\begin{array}{cccc}3 & 2 & 1 & -4 \\ 2 & 3 & 0 & -1 \\ 1 & -6 & 3 & -8\end{array}\right]\) On applying \(R_2 \rightarrow R_2-\frac{2}{3} R_1\) and \(R_3 \rightarrow R_3-\frac{1}{3} R_1\). we get…
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