Q. Let $P(n)$ denotes the statement that $n^{2} + n$ is odd. It is seen that $P(n) \Rightarrow P(n + 1),\ P(n)$ is true for all

A) $n > 1$
B) $n$
C) $n > 2$
D) None of these
Explanation

(d)
$P(n) = n^{2} + n$
It is always odd but square of any odd number is always odd and also sum of two odd number is always even. So, for no any $n$ for which this statement is true.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.