# NCERT Class 12-Mathematics: Exemplar Chapter –4 Determinants Part 13

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Question 35:

If x, y, z are all different from zero and , then value of is

(A)

(B)

(C)

(D)

Question 36:

The value of the determinant is

(A)

(B)

(C)

(D)

Question 37:

There are two values of a which makes determinant, then sum of these number is

(A)

(B)

(C)

(D)

## Fill in the Blanks

Question 38:

If A is a matrix of order , then _______ .

Question 39:

If A is invertible matrix of order , then _______ .

Question 40:

If , then the value of determinant is equal to _________.

Zero

Question 41:

If ______________.

Question 42:

If A is a matrix of order , then = ________.

Question 43:

If A is a matrix of order , then number of minors in determinant of A are ________.

Question 44:

The sum of the products of elements of any row with the co-factors of corresponding elements is equal to _________.