CBSE Class 12 Maths

Topic	Replies	Views	Activity
Let S = F-1 and T = {1, 2, 3}.Find F-1 of the following functions F from S to T, if it exist rational-function , class-12-maths	1	336	April 10, 2019
Find the number of all onto functions from the set {1, 2, 3, ……., n} to itself rational-function , class-12-maths	1	731	April 10, 2019
Given a non-empty set X, consider the binary operation * : P (X) x P (X) ∀ P (X) rational-function , class-12-maths	1	625	April 10, 2019
Given a non empty set X, consider P (X) which is the set of all subsets of X rational-function , class-12-maths	1	783	April 10, 2019
Give examples of two functions f : N → N and g : N → N such that gof is onto but f is not onto rational-function , class-12-maths	1	1462	April 10, 2019
Give examples of two functions f : N → N and g : Z → Z such that rational-function , class-12-maths	1	602	April 10, 2019
Show that the function f : R → R given by f(x) = x3 is injective rational-function , class-12-maths	1	891	April 10, 2019
Show that the function f : R → {x ∈ R : -1 < x < 1} defined by f(x) = x/1 + \|x\| , x ∈ R rational-function , class-12-maths	1	1302	April 10, 2019
If f(f(x)) is defined by f(f(x)) find f(f(x)) rational-function , class-12-maths	1	344	April 10, 2019
Let f : W → W be defined as f(n) = n - 1 if f is odd and f(n) = n + 1 if n is even rational-function , class-12-maths	1	1341	April 10, 2019
Let f : R → R be defined as f(x) = 10x + 7. Find the function such that gof = fog = IR rational-function , class-12-maths	1	1548	April 10, 2019
Consider a binary operation * on N defined as a * b = a3 + b3. Choose the correct answer: rational-function , class-12-maths	1	658	April 10, 2019
State whether the following statements are true or false. Justify: rational-function , class-12-maths	1	393	April 10, 2019
Let A = N x N and * be the binary operation on A defined by (a, b) * (c, d) = (a + c, b + d) rational-function , class-12-maths	1	782	April 10, 2019
Show that none of the operations given above the identity rational-function , class-12-maths	1	346	April 10, 2019
Let * be a binary operation on the set Q of rational numbers as follows: rational-function , class-12-maths	1	1089	April 10, 2019
Let * be the binary operation on N defined by a * b = H.C.F. of a and b rational-function , class-12-maths	1	540	April 10, 2019
Is * defined on the set {1, 2, 3, 4, 5} by a * b = L.C.M. of a and b a binary operation? rational-function , class-12-maths	1	724	April 10, 2019
Let * be the binary operation on N given by a * b = L.C.M. of a and b Find: rational-function , class-12-maths	1	796	April 10, 2019
Let * ' be the binary operation on the set {1, 2, 3, 4, 5} defined by rational-function , class-12-maths	1	321	April 10, 2019
Consider a binary operation * on the set {1, 2, 3, 4, 5} given by the following multiplication table rational-function , class-12-maths	1	574	April 10, 2019
Consider the binary operation V on the set {1, 2, 3, 4, 5} defined by a V b = min {a, b} rational-function , class-12-maths	1	734	April 10, 2019
For each binary operation * defined below, determine whether * is commutative or associative: rational-function , class-12-maths	1	1150	April 10, 2019
Determine whether or not each of the definition of * given below gives a binary operation rational-function , class-12-maths	1	489	April 10, 2019
Let f : R - {-4/3} → R be a function defined as f(x) = 4x/3x + 4 rational-function , class-12-maths	1	964	April 10, 2019
If f : R → R given by f(x) = (3 - x3)1/3, rational-function , class-12-maths	1	422	April 10, 2019
Let f : x → y be an invertible function. Show that the inverse of f-1 id f, rational-function , class-12-maths	1	739	April 10, 2019
Consider f : {1, 2 , 3} → {a, b, c} given by f(1) = a, f(2) = b and f(3) = c rational-function , class-12-maths	1	324	April 10, 2019
Let f: x → x be an inveertable function. show that f has unique inverse rational-function , class-12-maths	1	574	April 10, 2019
Consider f : R+ → [-5,∞] given by f(x) = 9x2 + 6x - 5 rational-function , class-12-maths	1	1330	April 10, 2019