Question

(3) Which of the following needs a proof?
(A) Axiom

(B) Postulate

(C) Theorem

(D) Definition​

Answer 1

Step-by-step explanation:

Axiom, Postulate and definition are self-evident & do not need any proof. Theorem is a proposition which needs a proof to establish its truth. Therefore, the theorem needs a proof. Hence, option A is correct.

Answer 2

C) Theorem is the correct answer

Reason:-

In Mathematics,a theorem is a non-self evident statement that has been proven to be true, either on the basis of generally accepted statements such as axioms or on the basis of previously established statements such as other theorems.