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If 0 < P(A) < 1, 0 < P(B) < 1 and P(A ∪ B) = P(A) + P(B) – P(A)P(B), then
Concept: undefined >> undefined
The value of f(0) for the function `f(x) = 1/x[log(1 + x) - log(1 - x)]` to be continuous at x = 0 should be
Concept: undefined >> undefined
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If `f`: R → {0, 1} is a continuous surjection map then `f^(-1) (0) ∩ f^(-1) (1)` is:
Concept: undefined >> undefined
The relation > (greater than) on the set of real numbers is
Concept: undefined >> undefined
Which one of the following relations on the set of real numbers R is an equivalence relation?
Concept: undefined >> undefined
Form the point of intersection (P) of lines given by x2 – y2 – 2x + 2y = 0, points A, B, C, Dare taken on the lines at a distance of `2sqrt(2)` units to form a quadrilateral whose area is A1 and the area of the quadrilateral formed by joining the circumcentres of ΔPAB, ΔPBC, ΔPCD, ΔPDA is A2, then `A_1/A_2` equals
Concept: undefined >> undefined
On the set N of all natural numbers, define the relation R by a R b, if GCD of a and b is 2. Then, R is
Concept: undefined >> undefined
In a group of 52 persons, 16 drink tea but not coffee, while 33 drink tea. How many persons drink coffee but not tea?
Concept: undefined >> undefined
The number of surjective functions from A to B where A = {1, 2, 3, 4} and B = {a, b} is
Concept: undefined >> undefined
A real value of x satisfies `((3 - 4ix)/(3 + 4ix))` = α – iβ (α, β ∈ R), if α2 + β2 is equal to
Concept: undefined >> undefined
There are 600 student in a school. If 400 of them can speak Telugu, 300 can speak Hindi, then the number of students who can speak both Telugu and Hindi is:
Concept: undefined >> undefined
If `f(x) = {{:(-x^2",", "when" x ≤ 0),(5x - 4",", "when" 0 < x ≤ 1),(4x^2 - 3x",", "when" 1 < x < 2),(3x + 4",", "when" x ≥ 2):}`, then
Concept: undefined >> undefined
Let f(x) = `{{:(5^(1/x), x < 0),(lambda[x], x ≥ 0):}` and λ ∈ R, then at x = 0
Concept: undefined >> undefined
A market research group conducted a survey of 2000 consumers and reported that 1720 consumers like product P1 and 1450 consumers like product P2. What is the least number that must have liked both the products?
Concept: undefined >> undefined
A relation in a set 'A' is known as empty relation:-
Concept: undefined >> undefined
A relation 'R' in a set 'A' is called a universal relation, if each element of' A' is related to :-
Concept: undefined >> undefined
A relation 'R' in a set 'A' is called reflexive, if
Concept: undefined >> undefined
Which of the following is/are example of symmetric
Concept: undefined >> undefined
If f(x + 2a) = f(x – 2a), then f(x) is:
Concept: undefined >> undefined
Let R = {(a, b): a = a2} for all, a, b ∈ N, then R salifies.
Concept: undefined >> undefined
