Answer:
We can say that [tex](-1)^x[/tex] is positive, when x is even positive number.
Step-by-step explanation:
A negative number raised to an even power will always produce a positive result.
Like [tex](-1)^{2} =1[/tex]
[tex](-1)^{4} =1[/tex]
[tex](-1)^{10} =1[/tex]
We can say that [tex](-1)^x[/tex] is positive, when x is even positive number.
