DETERMINANTS

NAME

A square matrix is said to be non-singular if:

• $\left|A\right|=0$

• $\left|A\right|\ne0$

• $\left|A\right|=-1$

• $\left|A\right|=1$

 The adjoint of matrix A =

• 
• 
• 
• 

• There is unique solution

• Solution does not exist

• There infinitely many solutions

• None of the above

Find area of triangle whose vertices are (2,7), (1,1) and (0,8).

• 53.6 sq units

• 45 sq units

• 23.5 sq units

• 32.25 sq units

If A is skew-symmetric matrix of order 3, then determinant A =

• 0

• 1

• -1

• 3

For what value of x, matrix B is a singular matrix?

• 0

• 1

• 2

• -1

Read the statements given below and choose the correct option.

• Assertion and reason both are true and reason is not the correct explanation of assertion.

• Assertion and reason both are true and reason is the correct explanation of assertion.

• Assertion and reason both are false.

• Assertion is true and reason is false.

Read the question and choose the right option.

• 6

• 0

• $\pm6$

• -6

• 4

• 5

• -4

• 9