If p and q are integers such that p < 0 < q, which of the following must be true? I. 2p < 2q II. p2 < q2 III. p + q = 0

প্রশ্নঃ If p and q are integers such that p < 0 < q, which of the following must be true? I. 2p < 2q II. p2 < q2 III. p + q = 0