Question

When y is divided by 2, is the remainder 1? I. (-1)^(y+2) = -1 ii. Y is prime.

Answer 1

Step-by-step explanation:

when y is divided by 2 the remainder is 1

which means the number is odd

odd+ even(2) = odd

so -1 power y+2 is odd that means

(-1)^ (y+2)= -1

-1 power odd gives -1

y don't need to be prime because

consider 9,15,21... these are all odd composite numbers ( opposite of prime numbers)

I hope it helps you.............