Question

Find the value of n for which (-1)^n+(-1)^8n=0​

Answer 1

Answer:-

Solution :- (-1)^n +(-1)^8n = 0

i.e., (−1)^n =−1 only when n is odd.

Now, 8n will always be an even integer because

it is a multiple of 2 i.e. (2×4n).

So, (−1)^8n will be equal to 1.

If n is odd, equation will become −1+1=0

So, n has to be Odd Natural Number.