Question

Write an expression with (-1) as its base that will produce a positive product

Answer 1

The expression with '-1' as its base that will produce a positive product is

`(-1)^(2n)` , where n is a natural number.

If we take n=1, we get
`(-1)^(2n)=(-1)^(2 * 1)= 1` which is positive.

If we take n=2, we get
`(-1)^(2n)=(-1)^(2 * 2)= 1` which is also positive.

Similarly if we take any natural number in this expression, it will give a positive product.

Hence,
`(-1)^(2n)` is the required expression.