T1 and T2. Class 9

The idea of matrices was given by

• Arthur Cayley

• Newton

• Pythagoras

Arthur Cayley write a book Theory of Matrices in

• 1859

• 1858

• 1857

The order of matrix [ 2 1] is

• 2-by-1

• 1-by-2

• 1-by-1

Which is order of a square matrix.

• 2-by-2

• 1-by-2

• 2-by-1

In matrix multiplication, in general, AB...........BA

• Not equal

• Equal

• Row

Matrix A+B can be found if order of A and B is.........

• Different

• Equal

• Greater

Write 7√x in exponential form

• 7x

• x

• None

In 3√35 the radicand is...

• 3

• 1/3

• 35

The conjugate of 5+4i is

• -5+4i

• -5-4i

• 5-4i

Every real number is....

• A positive number

• A negative integer

• A complex number