Question

Solved question number 5 given in the following attachment

Answer 1

Answer:

answer = i

Step-by-step explanation:

(i⁴ⁿ.i - i⁴ⁿ.i⁻¹)/2

we know that i⁴ⁿ = 1

(i - 1/i)/2

(i²-1)/2i

-1-1/2i = -2/2i = -1/i

Rationalising we get,

-i/-1 = i

Hence the answer is ==> i