evaluate -a^n when a=3 and n=2,3,4 and 5.Now evaluate (-a)^n when a=3 and n=2,3,4 and 5.Based on this sample,between -a^n and (-a)^n?

evaluate an when a3 and n234 and 5Now evaluate an when a3 and n234 and 5Based on this samplebetween an and an class=

Respuesta :

[tex]-a^n[/tex]
values when a = 3 and n = 2,3,4, and 5
[tex]-(3)^2 = -9[/tex]
[tex]-(3)^3 = -27[/tex]
[tex]-(3)^4 = -81[/tex]
[tex]-(3)^5=-243[/tex]
----------------------------------- other expression
[tex](-a)^n [/tex]
value when a = 3 and n = 2,3,4, and 5
[tex](-3)^2=9[/tex]
[tex](-3)^3=-27[/tex]
[tex](-3)^4=81[/tex]
[tex](-3)^5=-243[/tex]

[tex]-(a)^n \neq (-a)^n[/tex]  the two expressions only have the same value when n is an odd number.  One expression is the opposite of the results of a raised to the power of n and the other is the opposite of a being raised to the power of n... what is in bold happens 1st in the order of operations