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Important Topics

Relations And FunctionsImportant Topics

BITSAT · Mathematics

Most important topics from Relations And Functions for BITSAT Mathematics. Focus on these high-weightage areas for maximum score.

Relations And Functions — Syllabus & Topics

Topics covered in Relations And Functions for BITSAT Mathematics.

Topics in Relations And Functions

1

1.2 Types of Relations - Problem-Solving Approach

  • A relation R from set A to B is a subset of A × B, i.e., R ⊆ A × B
  • Domain of R = {a ∈ A : (a,b) ∈ R for some b ∈ B}
  • Range of R = {b ∈ B : (a,b) ∈ R for some a ∈ A}
2

1.3 Types of Functions - Step-by-Step Analysis

  • A function f: A → B assigns exactly one element in B to each element in A
  • Functions can be one-one (injective), onto (surjective), or bijective (both)
  • Total functions from A to B = [n(B)]^[n(A)]
3

1.4 Composition and Invertible Functions - Advanced Problem Solving

  • Composition (g∘f)(x) = g(f(x)) - apply f first, then g
  • Composition is associative: f∘(g∘h) = (f∘g)∘h but generally not commutative
  • Function has inverse if and only if it is bijective

Key Concepts

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What topics are covered in Relations And Functions for BITSAT?

Relations And Functions is an important chapter in BITSAT Mathematics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: 1.2 Types of Relations - Problem-Solving Approach, 1.3 Types of Functions - Step-by-Step Analysis, 1.4 Composition and Invertible Functions - Advanced Problem Solving.

Relations And Functions is a frequently tested chapter in BITSAT Mathematics. Questions from this chapter appear regularly in previous year papers. There are 53 practice questions available for this chapter.

Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.