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Questions  

If A=1, 2, 3, 4; B=a, b and f is a mapping such that 

f: AB, then A×B is

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By Expert Faculty of Sri Chaitanya
a
a, 1, 3, b
b
a, , 4, b
c
1, a, 1, b, 2, a, 2, b, 3, a, 3, b, 4, a, 4, b
d
None of these

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detailed solution

Correct option is C

It is obvious.


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If P, Q and R are subsets of a set A, then R×(PcQc)c =

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