Question

(-1)×(-1)×(-1)×(2m+1) times where m is a natural number,is equal to?

1. 1
2.-1
3.1 or-1
4.None​

Answer 1

(2). -1

Explanation:

The given parameter can be represented as:

`(-1)^(2m + 1)`

See comment for correct question

Required

The end result

From the question, we understand that m is a natural number

This means that:

`2m + 1 \to` odd number

So:

`(-1)^(2m + 1) = -1` --- i.e. -1 to the power of an odd number will give -1

Hence; (2) is correct