If a statement is not always true, then it is a ….....

If a tower subtends equal angles at four points P, Q , R and S that lie in a plane containing the foot of the tower , the which fo the following statements is always true (here, the tower is perpendicular to the plane containing the points P, Q,R,S)

Which of the following statement(s) is/are not always true? If log(ab) exists,then log(ab)=log a+log b for a and b in R

Which Statement is always true for an exothermic reaction ?

Which of the following statements is always true? ([.] represents the greatest integer function. a) If f(x) is discontinuous then |f(x)| is discontinuous b) If f(x) is discontinuous then f(|x|) is discontinuous c) f(x)=[g(x)] is discontinous when g(x) is an integer d) none of these

Which of the following is not always true ?

If x = a, then which of the following is not always true for an integer k.

Which of the following statement is always true