AP EAMCET · Maths · Matrices
The sum of two lower triangular matrices is always
- A an upper triangular matrix
- B a lower triangular matrix
- C a diagonal matrix
- D a scalar matrix
Answer & Solution
Correct Answer
(B) a lower triangular matrix
Step-by-step Solution
Detailed explanation
Let lower triangular matrix \(A=\left[\begin{array}{lll}a & 0 & 0 \\ p & b & 0 \\ q & r & c\end{array}\right]\) and \(B=\left[\begin{array}{ccc}a_1 & 0 & 0 \\ p_1 & b_1 & 0 \\ q_1 & r_1 & c_1\end{array}\right]\)…
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