Types of Matrices

What is a column matrix?

• A matrix with only one row

• A matrix with equal number of rows and columns

• A matrix with only one column

• A matrix with all elements zero

Which type of matrix has equal number of rows and columns?

• Column matrix

• Square matrix

• Row matrix

• Zero matrix

What defines a diagonal matrix?

• All elements are zero

• Diagonal elements are zero

• Non-diagonal elements are zero

• All elements are equal

When is a scalar matrix also an identity matrix?

• When k equals any real number

• When k equals -1

• When k equals 1

• When k equals 0

What is the defining feature of an identity matrix?

• Diagonal elements are all one

• All elements are zero

• All elements are equal

• Diagonal elements are zero

What is a zero matrix?

• A matrix with all elements zero

• A matrix with equal number of rows and columns

• A matrix with only one row

• A matrix with only one column

Under what conditions are two matrices considered equal?

• Same order and corresponding elements are equal

• Same number of columns

• All elements are zero

• Same number of rows

If two matrices are equal, what can be said about their elements?

• They are equal to each other

• They are different

• They are all one

• They are all zero

What is the value of 'a' if 2a + b = 4 and a - b = 5?

• 5

• 4

• 2

• 3

In the equation 4c - d = 11 and 2c + d = 1, what is the value of 'd'?

• 3

• -3

• 2

• -2