Q17 of 69 Page 261

Which of the following is a statement.

A statement is an assertive (declarative) sentence if it is either true or false but not both.

Here, 6 is a natural number is true

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15

Prove by direct method that for any real numbers x, y if x = y, then x2 = y2.

 16

Using contrapositive method prove that if n2 is an even integer, then n is also an even integers.

 18

Which of the following is not a statement

 19

The connective in the statement

“2 + 7 > 9 or 2 + 7 < 9” is