(a)Check the validity of the biconditional statement:"a glass of water is half empty if and only if it is half full".

(b)Check the validity of the statement given below by the method of contradiction(ii)q:If n is a real number with n>3 ,then n^2>9 .

(a)Check the validity of the statement given below by contradiction method."The sum of an irrational number and a rational number is irrational".

(a)Check the validity of the statement given below by contradiction method.'P:The sum of an irrational number and a rational number is irrational".

Check the validity of the statement given below by contradiction method"the sum of an irrational number and a rational number is irrartional".

Check the validity of the statement given below by contradiction method. i) p: The sum of an irrational number and a rational number is irrational.

Check the validity of the statement given below by the method given against it. q : If n is a real number with n gt 3 , then n^2 gt 9 ( by contradiction method)

Check the validity of the statement given below by the method given against it. p : The sum of an irrational number and a rational number is irrational ( by contradiction method )

The mean value of AC current in half cycle and in full cycle is