Question

Evaluate (i^19+(1/i)^25)^2

Answer 1

Answer:

-4

Step-by-step explanation:

(i^19+(1/i)^25)^2

=(i^3 + (1/i))^2

={(i^4+1)/i}^2

=(2/i)^2 = 4/(i^2) = 4 (i^2)/(i^4) = 4 ( i^2) = -4

All the Best