1.

Write down the contra positive of the following statements.(î) lf x =y and y=3,then x = 3.(ii) If n is a natural number, then n is an integer.(iii) If all three sides ola triangle are equal, then the triangle is equilateral.(iv) If x and y are negative integers, then y is positive.(v) If natural number n is divisible by 6, then n is divisible by 2 and 3.(vi) If it snows, then the weather will be cold.(vii)If x is a real number such that 0 <x < 1, then x2 < 1

Answer»

(i) If x ≠ 3, then x ≠y or y ≠ 3.

(ii) If n is not an integer, then it is not a natural number.

(iii) If the triangle is not equilateral, then all three sides of the triangle are not equal.

(iv) If x is not positive integer, then either x or y is not negative integer.

(v) If natural number n is not divisible by 2 or 3, then n is not divisible by 6.

(vi) The weather will not be cold, if it does not snow.

(vii) lf x2 is not less than 1, thenx is not a real number such that 0 <x <1.



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