If `D_(1)` and `D_(2)` are two `3xx3` diagonal matrices, then which of the following is/are true ?

Question

If `D_(1)` and `D_(2)` are two `3xx3` diagonal matrices, then which of the following is/are true ?

If `D_(1)` and `D_(2)` are two `3xx3` diagonal matrices, then which of the following is/are true ?
A. `D_(1)D_(2)` is a diagonal matrix
B. `D_(1)D_(2)=D_(2)D_(1)`
C. `D_(1)^(2)+D_(2)^(2)` is a diagonal matrix
D. none of these

Monjur Alahi

8 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

All are properties of diagonal matrix.

8 views Answered 2023-02-05 15:29