Scalar multiplication is obtained by
multiplying each entry of matrix by a…………..
a)real number
b) null matrix
c) identity matrix
d) none of these
Under scalar multiplication the order of matrix remain……………..
a) same
b) changed
c) unchanged
d) both a & c
Matrix addition is…………..
a) commutative
b) non-commutative
c) both a and b
d) none of these
Explanation:Since order of matrix doesn’t matter i.e. For two matrices A and B, A+B=B+A, so matrix addition is commutative.
(A+B)+C = A+(B+C). This law of matrices is known as…….
a) cumulative law under addition
b) associative law under addition
c) distributive law under addition
d) identity law
