If A `= [{:(-1, 0, 0),(0, x, 0),(0, 0, m):}]` is a scalar matrix, then x + m = ____.

If P = [{:(3, 0), (0, lambda):}] is scalar matrix then lambda = ____.

The matrix A=[{:(1,0,0),(0,2,0),(0,0,3):}] is: a) scalar matrix b) symmetric matrix c) skew symmetric matrix d) none f these

The matrix A=[{:(0,0,2),(0,2,0),(2,0,0):}] is: a) scalar matrix b) diagonal matrix c) square matrix d) none of these

Assertion (A) [(7,0,0),(0,7,0),(0,0,7)] is a scalar matrix Reason (R) : if all the elements of the principal diagonal are equal, it is called a scalar matrix

The matrix {:[(0,0,5),(0,5,0),(5,0,0)] is a scalar matrix. State true or false. If false, then what type of matrix is this?

If A = [[x,0,0],[0,y,0],[0,0,z]] , is a non-singular matrix then find A^-1 by elementary transformations, Hence, find the inverse of [[2,0,0],[0,1,0],[0,0,-1]]

The matrix [(0,0,5),(0,5,0),(5,0,0)] is a scalar matrix. State true of false. If false then what type of matrix is this ?