CBSE 12 Maths Relation and Function Important Question: Check Detailed Blue Print

CBSE 12 Maths Relation and Function Important Questions are provided here along with the detailed blueprint.

Abhilasha Kiran

Updated on - Mar 11, 2025 | 5:42:00 PM

CBSE 12 Maths Relation and Function Important Question are provided here (Image Credits: pexels.com).

CBSE 12 Maths Relation and Function Important Question: The Central Board of Secondary Education (CBSE) will conduct the Maths Exam on March 8, 2025. Students preparing for the forthcoming class 12 Maths Exam can check the CBSE 12 Maths Relation and Function Important Questions to accelerate their preparation process. The CBSE Class 12 Maths Exam theory paper will be conducted for 80 marks and the remaining 20 marks will be from the internal assessment. The Relation and Function chapter holds the weightage of 6 marks and students must include this chapter in their preparation strategy.

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CBSE 12 Maths Relation and Function Important Question

Students can go through the important questions of CBSE Class 12 Maths Relation and Function chapter below.

SL.No.	CBSE 12 Maths Relation and Function Important Questions
1	A function f:R₊ →R where R, is the set of all nonnegative real numbers) defined by f(x) = 4x + 3 is: one-one but not onto onto but not one-one both one-one and onto neither one-one nor onto
2	Assertion(A): The domain of the function sec^-1 2x is （-∞, _ 1/2] U [1/2∞） Reason(R): sec^-1 (-2) = - π/4 Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A) Assertion (A) is true and Reason (R) is false Assertion (A) is false and Reason (R) is true
3	Let f: R - {4/3} → R be a function defined as f (x) = 4x/ 3x + 4, Show that f is a one-one function. Also, check whether f is an onto function or not.
4	Let A = (x €Z: 0 ≤ x ≤ 12}. Show that R = {(a, b) : a, b, €, A, la - bl is divisible by 4} is an equivalence relation. Find the set of all elements related to 1. Also write the equivalence class [2].
5	Evaluate: sin^-1 (sin 3π/4) + cos^-1 (cos 3π/4) + tan^-1 (1)
6	A relation Ron set A = {1, 2, 3, 4, 5) is defined as R = f(x, y) : X²- Y²) < 8} . Check whether the relation R is reflexive, symmetric and transitive.
7	Find the value of : tan^-1 (- 1/√3) + Cot^-1 (1/√3)+ tan^-1 [Sin -(π/4)].
8.	Find the domain of the function f(x) = sin^-1 x2 - 4).
9.	Let N be the set of natural numbers and R be the relation on N x N defined by (a, b) R (c, d) if ad = bc for all a, b, c, d e N. Show that Ris an equivalence relation.
10.	Read the following passage and answer the following questions. Sherlin and Danju are playing Ludo at home during Covid-19. While rolling the dice, Sherlin's sister Raji observed and noted the possible outcomes of the throw every time belonging to the set (1,2,3,4,5,6). Let A be the set of players while B be the set of all. (i) Raji wants to know the number of functions from A to B. Find the number of all possible functions. (ii) Raji wants to know the number of relations possible from A to B. Find the number of possible relations.

CBSE 12 Maths Relation and Function Detailed Blue Print 2025

Students can check the detailed blue Print of the CBSE 12 Maths Syllabus 2025 below.

Chapter Name	1 M	2M	3M	4M	5M	TQ	TM
Relation and Function	3	-	1	-	-	4	6

Apart from these CBSE 12 Maths Relation and Function Important Questions students must practice solving previous year’s question papers, sample and model papers for better performance.

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