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1.    Rewrite the following statement with “if-then” in five different ways conveying the same meaning.
          If a natural number is odd, then its square is also odd.

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a.) If the square of a natural number is odd, then the natural number is odd.

b.) A natural number is not odd only if its square is not odd.

c.) For a natural number to be odd it is necessary that its square is odd.

d.) For the square of a natural number to be odd, it is sufficient that the number is odd

e.) If the square of a natural number is not odd, then the natural number is not odd.

Posted by

HARSH KANKARIA

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