Karnataka Board Solutions for Chapter: Relations and Functions, Exercise 5: Miscellaneous Exercise on Chapter 1

Author:Karnataka Board

Karnataka Board Mathematics Solutions for Exercise - Karnataka Board Solutions for Chapter: Relations and Functions, Exercise 5: Miscellaneous Exercise on Chapter 1

Attempt the free practice questions on Chapter 1: Relations and Functions, Exercise 5: Miscellaneous Exercise on Chapter 1 with hints and solutions to strengthen your understanding. MATHEMATICS Textbook for Class XII solutions are prepared by Experienced Embibe Experts.

Questions from Karnataka Board Solutions for Chapter: Relations and Functions, Exercise 5: Miscellaneous Exercise on Chapter 1 with Hints & Solutions

EASY
12th Karnataka Board
IMPORTANT

Given a non-empty set X, consider PX which is the set of all subsets of X. Define the relation R in PX as follows:
For subsets A, B in PX, ARB if and only if AB. Is R an equivalence relation on PX? Justify your answer.

EASY
12th Karnataka Board
IMPORTANT

Find the number of all onto functions from the set {1,2,3,,n} to itself

EASY
12th Karnataka Board
IMPORTANT

Let S=a,b,c and T=1,2,3. Find F-1 of the given function F from S to T, if it exists.
 F=a,3,b,2,c,1

EASY
12th Karnataka Board
IMPORTANT

Let S={a,b,c} and T={1,2,3}. Find F-1 of the given function F from S  to T, if it exists.

F=a,2,b,1,c,1

EASY
12th Karnataka Board
IMPORTANT

Let A=-1,0,1,2, B=-4,-2,0,2 and f, g:AB be functions defined by f(x)=x2-x,xA and gx=2x-12-1, xA. Are f and g equal? Justify your answer.

EASY
12th Karnataka Board
IMPORTANT

Let A=1,2,3.Then number of relations containing 1,2 and 1,3 which are reflexive and symmetric but not transitive is

EASY
12th Karnataka Board
IMPORTANT

Let A=1,2,3. Then number of equivalence relations containing 1,2 is

HARD
12th Karnataka Board
IMPORTANT

Let f:RR be the Signum Function defined as
fx=1,x>0-1,x<0 and 0 if x=0
and g:RR be the Greatest Integer Function given by gx=x, where x is greatest integer less than or equal to x. Then, does fog and gof coincide in (0,1]?