Important questions & answers (MCQs) for Term 1 CBSE Class 12 Maths board exam 2021-22 are available here. These MCQs are from the latest CBSE Sample Paper (based on Term 1 CBSE Syllabus). Students can also download the complete CBSE Sample Paper & Syllabus from the links given at the end of this article. Students are also advised to check important resources from the CBSE section of Jagran Josh.

** NCERT Exemplar Solutions for Class 12 Maths (All Chapters): Download PDF **

CBSE 12th Maths Board Exam 2021-22 (Term 1): Important MCQs

Question: sin [𝜋/3 − sin-1 (−1/2)] =

(a) 1/2

(b) 1/3

(c) - 1

(d) 1

Answer:

𝑠𝑖𝑛 (𝜋/3 − (−𝜋/6)) = 𝑠𝑖𝑛 (𝜋/2) = 1

**CBSE Class 12 Applied Mathematics Syllabus 2021-22 (New): CBSE Academic Session 2021-22**

Question: Find the intervals in which the function f given by f (x) = x2 – 4x + 6 is strictly

increasing:

(a) (– ∞, 2) ∪ (2, ∞)

(b) (2, ∞)

(c) (c) (– ∞, 2)

(d) (– ∞, 2) ∪ (2, ∞)

Answer: (b)

⇒ 𝑓(𝑥) is Strictly increasing in (2, ∞)

Question: Given that A is a square matrix of order 3 and | A | = - 4, then | adj A | is equal to:

(a) -4

(b) 4

c) -16

(d) 16

Answer: (d)

Question: A relation R in set A = {1,2,3} is defined as R = {(1, 1), (1, 2), (2, 2), (3, 3)}. Which of the following ordered pair in R shall be removed to make it an equivalence relation in A?

(a) (1, 1)

(b) (1, 2)

(c) (2, 2)

(d) (3, 3)

Answer: (b)

(1, 2)

Question: The point at which the normal to the curve y = 𝑥 + 1/𝑥, x > 0 is perpendicular to the line 3x – 4y – 7 = 0 is:

(a) (2, 5/2)

(b) (±2, 5/2)

(c) (- 1/2, 5/2)

d) (1/2, 5/2)

Answer: (a)

Question: Given that matrices A and B are of order 3×n and m×5 respectively, then the order of matrix C = 5A +3B is

(a) 3×5

(b) 5×3

(c) 3×3

(d) 5×5

Answer: 3x5

Question: A linear programming problem is as follows:

𝑀𝑖𝑛𝑖𝑚𝑖𝑧𝑒 𝑍 = 30𝑥 + 50𝑦

subject to the constraints,

3𝑥 + 5𝑦 ≥ 15

2𝑥 + 3𝑦 ≤ 18

𝑥 ≥ 0, 𝑦 ≥ 0

In the feasible region, the minimum value of Z occurs at

(a) a unique point

(b) no point

(c) infinitely many points

(d) two points only

Answer:

(c)

For detailed solutions & more question, download sample paper from the link given below

** CBSE Class 12 Sample Paper for Maths: 2021-22 (Term 1) **

** CBSE Class 12 Marking Scheme for Maths: 2021-22 (Term 1) **

** CBSE Syllabus for Class 12 Maths 2021-22 **

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