–1 vote
104 views

Which of the following is true?

• Every lower triangular matrix is group under multiplication operation where all elements of diagonal are non zero numbers.
• Every diagonal matrix is group under multiplication operation, where all elements of diagonal are non zero numbers.
• Every matrix is Abelian under addition operation where all elements are real numbers.
• Both (a) and b)

Why is C incorrect?

retagged | 104 views
@gabbar its addition not multiplication..here identity element is 0 and inverse is I(A)= -A