Question

18.Which of the following statements is false ?Required to answer. Single choice.

(1 Point)

(a) Natural numbers are closed under subtraction

(b) Whole numbers are not closed under subtraction

(c) Integers are closed .

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Answer 1

Answer:

option c integers are closed

Answer 2

(a) Natural numbers are closed under subtraction.

Explanation:

• The statement 'Natural numbers are closed under subtraction' is a False statement. Let us check that with an example.

• Let two Natural numbers are 10 and 5. Here, (10 - 5) = 5, a Natural number. But (5 - 10) = - 5, not a Natural number.

• Integers are closed under subtraction because the subtraction between two integers also gives an Integer, either positive or negative or zero (0).

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