Question

Solve...

Answer 1

i think...i have to rationilize..))

Answer 2

yeah rationilize the inside

Answer 3

i got (-i)^n

Answer 4

ok

Answer 5

we need to find n

Answer 6

purely imaginary without ... i cant see there

Answer 7

With + ve imaginary part

Answer 8

with n=1 u have pure imaginary number

Answer 9

+ ve imafinary

Answer 10

n=3

Answer 11

Yup....

Answer 12

thxx

Answer 13

:)