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Q.

Consider the statement: “For an integer n, if n3−1 is even, then n is odd.” The contrapositive statement of this statement is:

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a

For an integer n, if n is odd, then n3−1 is even

b

For an integer n, if n is even, then  n3−1is odd

c

For an integer n, if is not even, thenn3−1 n is not odd

d

For an integer n, if n is even, then n3−1 is even

answer is B.

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The contra positive of p→q is ~q→~p
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