Math for Computer science
Questions 111 to 120
111.
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Let A = {0, 2,
4, 6, 8, 10}; B = {0, 1, 2, 3, 4, 5,
6} B È (B - A) is given by
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112.
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is known as
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113.
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Which of the
following is the encrypt of the menage "THE BEST ZOO" by
translating the letters into numbers applying the caesar cipher f(p) = (p +
3) mod 26?
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114.
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Let n be a
positive integer. The expansion of (x
+ y)5 is
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115.
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Let f be a
function from A to B.
'f' is said to
be a onto function if
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116.
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is logically equalent to
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117.
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Let f is a
function from A to B.
for aÎ A such that f (a) = b then 'b' is
called
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118.
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Let S = {0, 1,
2, 3, 5, 6, 7} Let f be a function defined on S such that f(x) = then the range of f in given by
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119.
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The set {x / x Î
A and x Ï B} is defined by
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120.
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Let U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} then bit string for the set A = {2, 4, 6,
8, 10} is
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Answers
111.
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Answer : (b)
Reason : B – A = {1, 3, 5}
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112.
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Answer : (d)
Reason : Absorption Law definition.
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113.
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Answer : (b)
Reason :
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114.
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Answer : (a)
Reason : By definition of Binomial Expansion.
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115.
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Answer : (a)
Reason : By definition of ONTO function.
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116.
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Answer : (a)
Reason : .
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117.
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Answer : (a)
Reason : By definition of image.
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118.
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Answer : (c)
Reason : f(0) = ëû = ë0û = 0
f (1) = ëû = ë0.2û = 0
f (2) = ëû = ë0.4û = 0
f (3) = ëû = ë0.6û = 0
f (5) = ëû = ë1û = 1
f (6) = ëû = ë1.2û = 1
f (7) = ëû = ë1.4û = 1
f (12) = ëû = ë2.4û
= 2
f(s) = {0, 1, 2}
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119.
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Answer : (c)
Reason :
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120.
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Answer : (c)
Reason : 0 0 1 0 1 0 1 0 1 0 1
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