Let P(n): n2+n+1 is an even integer. If P(k) is assumed true then P(k +1) is true. Therefore P(n) is true.
a) For n>1
b) For all n N
c) For n>2
d) None of these
Let P(n): n2+n+1 is an even integer. If P(k) is assumed true then P(k +1) is true. Therefore P(n) is true.
a) For n>1
b) For all n N
c) For n>2
d) None of these










