Q23 of 153 Page 14

If |z| = 2 and find z.

r = |z| = 2 ,

z = r(cos θ + i sin θ)

z = √2 (1+i)

If n ∈ N, then find the value of iⁿ + i^{n + 1} + i^{n + 2} + i^{n + 3}.

Find the real value of a for which 3i³ – 3ai² + (1 – a) i + 5 is real.

Write the argument of

Mark the Correct alternative in the following:

The value of (1 + i) (1 + i²) (1 + i³)(1 + i⁴) is