NCERT Class 12-Mathematics: Exemplar Chapter – 4 Determinants Part 13 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 35:

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

(A)

(B)

(C)

(D)

Answer: (D)

Question 36:

The value of the determinant is

(A)

(B)

(C)

(D)

Answer: (B)

Question 37:

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

(A)

(B)

(C)

(D)

Answer: (C)

Fill in the Blanks

Question 38:

If A is a matrix of order , then ________ .

Answer:

Question 39:

If A is invertible matrix of order , then ________ .

Answer:

Question 40:

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

Answer:

Zero

Question 41:

If ________.

Answer:

Question 42:

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

Answer:

Question 43:

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

Answer:

Question 44:

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

Answer:

Value of the determinant

Question 45:

If is a root , then other two roots are ________.

Answer: