Maths-
General
Easy
Question
Consider the set
of all determinants of order 3 with entries 0 or 1 only. Let
be the subset of
consisting of all determinants with value 1. Let C be the subset of the set of all determinants with value
Then
is empty
has as many elements as
has twice as many elements as
The correct answer is:
has as many elements as 
Since the value of a determinant charges by minus sign by interchanging any two rows or columns. Therefore, corresponding to every element
of
there is an element
in
obtained by interchanging two adjacent rows (or columns) in
It follows from this that 
Similarly, we have 
Hence, 
Related Questions to study
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Suppose
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and each element of
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's. Then,
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are
sets each with 3 elements, let
and each element of
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's and exactly 9 of the
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Which of the following statements is not true for any two rational numbers a, b ?
Which of the following statements is not true for any two rational numbers a, b ?
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Commutative property under subtraction for rational numbers a – b = b – a satisfies and its example is 
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Physics-
Figure (i) shows a conducting loop being pulled out of a magnetic field with a speed
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