Question

p(n):2n+1, for n =_n is not a prime number​

Answer 1

Step-by-step explanation:

x^2 −x+41

P(n)=x^2 −x+41 is a prime number

P(1)=1^2 −1+41 is a prime No. of

P(1)=41 is prime, which is true

P(2)=2^2 −2+41 is a prime No, i.e.,

P(2)=43 is prime No, which is true

P(211)=41^2 −41+41 is a prime No,

i.e., P(41)=41^2 is a primes which is Not true.