April 2025
Intermediate to advanced
616 pages
25h 43m
English
book
Pearson JEE Main Mathematics Vol 2 – 2026 | As Per NTA Syllabus | 2021 to 2025 Solved Previous Years’ Questions | 5000+ Topic-wise, Miscellaneous and Numerical–Based ... Papers on MyInsights | 2nd Edition
by Gavesh Bharadwaj
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1 Functions
INTRODUCTION
A relation R from a set A to a set B is called a function if each element of A has unique image in B.
It is denoted by the symbol.
which reads ‘ƒ’ is a function from A to B ‘or’ ƒ maps A to B,
Every function say y = f(x): A → B. Here x is independent variable which takes its values from A while ‘y’ takes its value from B. A relation will be a function if and only if
(a) x must be able to take each and every value of A and
(b) One value of x must be related to one and only one value of y in set B.
REPRESENTATION OF FUNCTION
It can be done by following methods:
(a) By Mapping
(b) By Algebraic method
(c) In the form of ...
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