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NCERT Solutions for Class 11 Maths Chapter 2 Ex 2.3

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Get Free NCERT Solutions for Class 11 Maths Chapter 2 Relations and Functions Ex 2.3 PDF in Hindi and English Medium. Relations and Functions Class 11 Maths NCERT Solutions are extremely helpful while doing your homework. Relations and Functions Exercise 2.3 Class 11 Maths NCERT Solutions were prepared by Experienced LearnCBSE.in Teachers. Detailed answers of all the questions in Chapter 2 Class 11 Relations and Functions Ex 2.3 provided in NCERT Textbook.

Free download NCERT Solutions for Class 11 Maths Chapter 2 Relations and Functions Ex 2.3 PDF in Hindi Medium as well as in English Medium for CBSE, Uttarakhand, Bihar, MP Board, Gujarat Board, BIE, Intermediate and UP Board students, who are using NCERT Books based on updated CBSE Syllabus for the session 2019-20.

NCERT Solutions for Class 11 Maths Chapter 2 Ex 2.3

NCERT Solutions for Class 11 Maths Chapter 2 Relations and Functions Ex 2.3
NCERT Solutions for Class 11 Maths Chapter 2 Relations and Functions Ex 2.3

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Question-4
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Question-5
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NCERT Solutions for Class 11 Maths Chapter 2 Relations and Functions Ex 2.3

प्रश्न 1.

निम्नलिखित संबंधों में से कौन से फलन हैं ? कारण का उल्लेख कीजिए। यदि संबंध एक फलन है तो उसका परिसर निर्धारित कीजिए।
(i) {(2,1), (5, 1), (8, 1), (11, 1), (14, 1), (17, 1)}
(ii) {(2, 1), (4, 2), (6, 3), (8, 4), (10, 5), (12, 6), (14, 7)}
(iii) {(1, 3), (1, 5), (2, 5)}
हल:
(i) माना R = {(2, 1), (5, 1), (8, 1), (11, 1), (14, 1), (17, 1)}
यह संबंध एक फलन है क्योंकि किसी भी दो क्रमित युग्म का पहला घटक बराबर नहीं है।
प्रान्त = {2, 6, 8, 11, 14, 17} तथा परिसर = {1}.
(ii) माना R = {(2, 1), (4, 2), (6, 3), (8, 4), (10, 5), (12, 6), (14, 7)}
यह एक फलन है क्योंकि किसी भी दो क्रमित युग्म का पहला घटक बराबर नहीं है।
अतः प्रांत = {2, 4, 6, 8, 10, 12, 14}, परिसर = {1, 2, 3, 4, 5, 6, 7}.
(iii) यह एक फलन नहीं है क्योंकि (1, 3), (1, 5) में पहला घटक समान है।

Relations and Functions Class 11 Ex 2.3 in Hindi

प्रश्न 4.
फलन ‘t’ सेल्सियस तापमान का फारेनहाइट तापमान में प्रतिचित्रण करता है, जो t(C) = \frac { 9C }{ 5 } + 32 द्वारा परिभाषित है। निम्नलिखित को ज्ञात कीजिए:
(i) t(0)
(ii) t(28)
(iii) t(-10)
(iv) C का मान, जब t(C) = 212
Class 11 Relations and Functions for UP Board
Relations and Functions in Hindi for UP Board

प्रश्न 5.
निम्नलिखित में से प्रत्येक फलन का परिसर ज्ञात कीजिए:
(i) f(x) = 2 – 3x, x ∈ R, x > 0.
(ii) f(x) = x² + 2, x एक वास्तविक संख्या है।
(iii) f(x) = x, एक वास्तविक संख्या है।
NCERT Solutions for Class 11 Maths Chapter 2 for UP Board

The post NCERT Solutions for Class 11 Maths Chapter 2 Ex 2.3 appeared first on Learn CBSE.


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