Respuesta :

ujalakhan18

Answer:

C.

Step-by-step explanation:

[tex]i ^ {15}[/tex]

=> [tex]i^{14}*i[/tex]

=> [tex](i^2)^7*i[/tex]

=> [tex](-1)^7 * i[/tex]

=> [tex](-1)*i[/tex]

=> [tex]-i[/tex]

unicorn3125

Answer:

                - i

Step-by-step explanation:

i² = -1

i¹⁵ = i²ˣ⁷⁺¹ = (i²)⁷•i¹ = (-1)⁷•i = -1•i = - i