info@clay6.com
+91-9566306857
(or)
+91-9176170648
Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
NEET
Physics
Chemistry
Biology - XII
Biology - XI
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
NEET
Physics
Chemistry
Biology - XII
Biology - XI
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
CBSE XII
>>
Math
>>
Relations and Functions
Let X={1,2,3} and Y={4,5}.Find whether the following subsets of X x Y are functions from X to Y or not.$\quad f=\{(1,4),(1,5),(2,4),(3,5)\} $
Note: This is part 1 of a 4 part question, split as 4 separate questions here.
cbse
class12
ch1
q12
q12-1
p11
short-answer
exemplar
sec-a
easy
math
Share
asked
Dec 18, 2012
by
sreemathi.v
edited
Jul 9, 2014
by
balaji.thirumalai
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
Toolbox:
The given set of ordered pair subset of $x \times y$ function if same element $a \in x$ is not mapped on to two different elements of y
The subset of $x \times $ is a function if it defines a mapping for each element of x an element of y
(i) $f=\{(1,4), and (1,5),(2,4),(3,5)\}$
Since (1,4) and (1,5) both belong to f the same element $1 \in X$ is mapped to two different elements in y, f is not a function.
hence f is not a function.
answered
Mar 2, 2013
by
meena.p
edited
Mar 13, 2013
by
sreemathi.v
Please
log in
or
register
to add a comment.
Related questions
Let X={1,2,3} and Y={4,5}.Find whether the following subsets of X x Y are functions from X to Y or not.$(iv)\quad k=\{(1,4),(2,5)\} $
cbse
class12
ch1
q12
q12-4
p11
exemplar
sec-a
easy
math
asked
Mar 13, 2013
by
sreemathi.v
1
answer
Let X={1,2,3} and Y={4,5}.Find whether the following subsets of X x Y are functions from X to Y or not.$(iii)\quad h=\{(1,4),(2,5),(3,5)\} $
cbse
class12
ch1
q12
q12-3
p11
exemplar
sec-a
easy
math
asked
Mar 13, 2013
by
sreemathi.v
1
answer
Let X={1,2,3} and Y={4,5}.Find whether the following subsets of X x Y are functions from X to Y or not.$(ii)\quad g=\{(1,4),(2,4),(3,4)\} $
cbse
class12
ch1
q12
q12-2
p11
exemplar
easy
sec-a
math
asked
Mar 13, 2013
by
sreemathi.v
1
answer
Are the following set of ordered pairs function?If so,examine whether the mapping is injective or subjective $\;\{(x,y)\;:\;x \;is \;a \;person,y\; is\; the\; mother\; of\; x\}$
cbse
class12
ch1
q8
q8-1
p11
short-answer
exemplar
sec-a
easy
math
asked
Dec 18, 2012
by
sreemathi.v
1
answer
State whether the following statements are true or false. Justify. (i) For an arbitrary binary operation $\ast$ on a set N, $a \ast a=a \forall a \in N$
cbse
class12
bookproblem
ch1
sec4
easy
p26
q12
q12-1
sec-a
math
asked
Mar 20, 2013
by
balaji.thirumalai
1
answer
Are the following set of ordered pairs function? If so,examine whether the mapping is injective or subjective $\;\{(a,b)\;:\;a\;$ is a person,$b\;$ is an ancestor of $a\}$
cbse
class12
ch1
q8
q8-2
p11
short-answer
exemplar
sec-a
easy
math
asked
Mar 1, 2013
by
meena.p
1
answer
If functions $f\;:\;A \rightarrow B\;and\;g\;:\;B \rightarrow A $ satisfy g o f =$I_A$ ,then is f one-one and g onto
cbse
class12
ch1
q13
p11
short-answer
exemplar
sec-a
easy
math
asked
Dec 18, 2012
by
sreemathi.v
1
answer
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
...
close