Using the words necessary and sufficient rewrite the statement The integer n is odd if and only if `n^2`is odd. Also check whether the statement is true.

Using the word " necessary and sufficent" rewrite the statement "j sqrtn is a rational number if and only if is a pefect square

(i) Check the validity of given statement r : A triangle is iosceles if and only if its two angles are equal (ii) Using the word " necessary and sufficent " rewrite the statement " A sequnece is in G. P if and only if each term differs from the succeeding one by a non-zero constant ratio

Show that the following statement is true: The integer n is even if and only if n^(2) is even

The square of an odd number is always odd .Is the given statement true?

If a is an even positive integer and b is an odd positive integer, then which of the following statement is true?

If a is an even positive integer and b is an odd positive integer, then which of the following statement is true?

Write the negation of the following statements and check whether the resulting statements are true: T Write the negation of the following statements and check whether the resulting statements are true: There does not exist a quadrilateral which has all its sides equal.

Consider the statement : For an interger n if n^(3) - 1 is even, the n is odd " . The contrapositive statemnet of this statement is :