Question

What is the real part of this complex number :

2i^28 - 3i^25

Answer 1

(2*1)²⁸-(3*2*1)²⁵

=-2.843028803ₓ₁₀¹⁹

Answer 2

9514 1404 393

Answer:

2

Explanation:

i^4 = 1, so powers of i^4 are 1

2i^28 = 2

-3i^25 = -3(i^24)(i) = -3i

The number simplifies to 2 -3i. The real part is 2.