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Recent questions tagged relations and functions
+2
votes
1
answer
Let R be a relation in the set of integer I defined by aRb iff a & b both are neither even nor odd. Then show that R is
asked
Apr 6, 2019
in
JEE
by
kratos
relation
cbse
jee
relations and functions
jee mains
class-12
+2
votes
1
answer
If f(x) = cos (log x), then f(1/x) f(1/x) -1/2[f(x/y) + f(xy)] is equal to
asked
Apr 6, 2019
in
JEE
by
kratos
class-11
jee
differential equations
relations and functions
functions
jee mains
sets
+1
vote
1
answer
(i) f : {1,2, 3, 4} → {10} with f = {(1, 10), (2, 10), (3, 10), (4, 10)}
asked
Apr 6, 2019
in
Class 12
by
kratos
class-12
relations and functions
+2
votes
1
answer
Let M be the set of men and R is a relation ‘is son of’ defined on M. Then, R is
asked
Apr 6, 2019
in
JEE
by
kratos
class-11
jee
relations and functions
jee mains
sets
+1
vote
1
answer
f : A→B will be an onto function of-
asked
Apr 6, 2019
in
JEE
by
kratos
cbse
electrostatic potential and capacitance
thermodynamic
class-11
jee
jee mains 2019
relations and functions
jee mains
class-12
+2
votes
1
answer
Find the set of real ‘ x ‘ for which the function f (x) = 1 / [|x - 1|] + [|12 - x|] - 11 is not defined, where [ . ]
asked
Apr 6, 2019
in
JEE
by
kratos
applications of derivatives
class-11
jee
trigonometric identities
relations and functions
jee mains
functions
relations
+2
votes
1
answer
Let a relation R be defined by R = {(4,5), (1,4), (4,6) (7,6) (3,7)}, then R^-1 OR is equal to
asked
Apr 5, 2019
in
JEE
by
kratos
class-11
jee
class-9
relations and functions
jee mains
class-12
relations
sets
+2
votes
1
answer
How many functions can be defined from a set A containing 5 elements to a set B having 3 elements. How many these are surjective functions.
asked
Apr 5, 2019
in
JEE
by
kratos
jee
permutations and combinations
relations and functions
jee mains
class-12
+2
votes
1
answer
Find the range of each of the following functions: (i) f{x) = 2 - 3x, x ∈ R,x>0
asked
Apr 5, 2019
in
JEE
by
kratos
class-11
jee
relations and functions
jee mains
class-12
sets
+1
vote
1
answer
Find the range of the following functions given by
asked
Apr 5, 2019
in
Class 11
by
kratos
class-11
relations and functions
+2
votes
1
answer
If f(x) = in(1 - x/1 + x), prove that f(2x/1 + x^2) = 2f(x).
asked
Apr 5, 2019
in
JEE
by
kratos
relations and functions
jee
jee mains
sets
+3
votes
1
answer
If in a group of 850 persons, 600 can speak Hindi and 340 can speak Tamil. Then, the number of persons can speak both Hindi and Tamil is
asked
Apr 4, 2019
in
JEE
by
kratos
analytical & logical reasoning
class-11
jee
mental ability
relations and functions
jee mains
sets
+2
votes
1
answer
Find the domain and the range of the real function f defined by () = √( − 1)
asked
Apr 4, 2019
in
Class 11
by
kratos
class-11
relations and functions
+2
votes
1
answer
Let * be a binary operation on Q defined by a*b=3ab/5
asked
Apr 4, 2019
in
Class 12
by
kratos
class-12
relations and functions
binary operations
cbse
+3
votes
1
answer
The relation R defined on the set of natural numbers as {(a, b) : a differs from b by 3} is given by
asked
Apr 3, 2019
in
JEE
by
kratos
relations and functions
jee
jee mains
sets
+2
votes
1
answer
State the reason for the relation R in the set {1, 2, 3} given by R = {(1, 2), (2, 1)} not to be transitive.
asked
Apr 3, 2019
in
Class 12
by
kratos
class-12
relations and functions
cbse
+2
votes
1
answer
If X = {a, b, c, d} and Y = {f, b, d, g}, find (i) X – Y (ii) Y – X (iii) X ∩ Y
asked
Apr 3, 2019
in
JEE
by
kratos
class-11
jee
relations and functions
jee mains
sets
+3
votes
1
answer
Given that N = {1, 2, 3, ... , 100}. Then write
asked
Apr 3, 2019
in
JEE
by
kratos
class-11
jee
relations and functions
jee mains
sets
+1
vote
1
answer
If f(x) is an invertible function, find the inverse of f(x) = (3x - 2)/5
asked
Apr 3, 2019
in
Class 12
by
kratos
class-12
relations and functions
+3
votes
1
answer
Let N be the set of all natural numbers. If f : N → N defined as f(x) = 2x, ∀ x ∈ N, then f is
asked
Apr 2, 2019
in
JEE
by
kratos
jee
relations and functions
jee mains
class-12
sets
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