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The first three of four given numbers are in G.P. and their last three are in A.P. with common difference 6. If first and fourth numbers are equal, then the first number is
Concept: undefined >> undefined
If a, b, c are in G.P. and a1/x = b1/y = c1/z, then xyz are in
Concept: undefined >> undefined
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If odds against an event be 7 : 9, find the probability of non-occurrence of this event.
Concept: undefined >> undefined
If odds in favour of an event be 2 : 3, find the probability of occurrence of this event.
Concept: undefined >> undefined
In the following, state whether A = B or not:
A = {a, b, c, d}; B = {d, c, b, a}
Concept: undefined >> undefined
In the following, state whether A = B or not:
A = {4, 8, 12, 16}; B = {8, 4, 16, 18}
Concept: undefined >> undefined
In the following, state whether A = B or not:
A = {2, 4, 6, 8, 10}; B = {x : x is positive even integer and x ≤ 10}
Concept: undefined >> undefined
In the following, state whether A = B or not:
A = {x : x is a multiple of 10}; B = {10, 15, 20, 25, 30, ...}
Concept: undefined >> undefined
Are the following pair of sets equal? Give reasons.
A = {2, 3}, B = {x : x is solution of x2 + 5x + 6 = 0}
Concept: undefined >> undefined
Are the following pair of sets equal? Give reasons.
A = {x : x is a letter in the word FOLLOW};
B = {y : y is a letter in the word WOLF}
Concept: undefined >> undefined
From the sets given below, select equal sets:
A = {2, 4, 8, 12},
B = {1, 2, 3, 4},
C = {4, 8, 12, 14},
D = {3, 1, 4, 2},
E = {-1, 1},
F = {0, a},
G = {1, -1},
H = {0, 1}
Concept: undefined >> undefined
Assume that P (A) = P (B). Show that A = B.
Concept: undefined >> undefined
Find the domain and range of the given real function:
f(x) = – |x|
Concept: undefined >> undefined
Find the domain and range of the following real function:
f(x) = `sqrt(9 - x^2)`
Concept: undefined >> undefined
A function f is defined by f(x) = 2x – 5. Write down the values of f(0).
Concept: undefined >> undefined
The function ‘t’ which maps temperature in degree Celsius into temperature in degree Fahrenheit is defined by `t(C) = "9C"/5 + 32`
Find
(i) t(0)
(ii) t(28)
(iii) t(–10)
(iv) The value of C, when t(C) = 212.
Concept: undefined >> undefined
Find the range of the following function.
f(x) = 2 – 3x, x ∈ R, x > 0.
Concept: undefined >> undefined
Find the range of the following function.
f(x) = x2 + 2, x, is a real number.
Concept: undefined >> undefined
Find the range of the following function.
f(x) = x, x is a real number
Concept: undefined >> undefined
Find the domain and the range of the real function f defined by `f(x)=sqrt((x-1))`
Concept: undefined >> undefined
