Question

Complete the equation.
(-1)^39=?

Answer 1

See below

Explanation:

So for this one we can estimate

-1^1=-1

-1^2=1

-1^3=-1

............

And so on

The pattern shown here is that if it is odd then the answer is -1 and the answer is 1 if it is even

So think..

Is 39 odd or even?

39 is odd so the answer is -1

Also you can calculator it

Answer 2

-1

Explanation:

The total number of minus signs is odd, so the product is negative.

(-1)^39 = -(1^39) = -1