Question If N is an even integer, then which of the following must be an odd integer. (A) N (B)-N+1 (C) 3N (D) 3N+3

Answer: B and D Step-by-step explanation: Let n=2k, where k is an integer. (A) 2k, which is even (B) -2k+1=2(-k+1)-1, which is odd (C) 3(2k)=6k, which is even (D) 3(2k)+3=6k+3=2(3k+1)+1, which is odd Log in to Reply

Answer:Step-by-step explanation: