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Question

Question: Which of the following is a complex number –...

Which of the following is a complex number –

A

(1, 1\sqrt{–1})

B

(0, i)

C

(i4, i8)

D

(tanπ2,tanπ)\left( \tan\frac{\pi}{2},\tan\pi \right)

Answer

(i4, i8)

Explanation

Solution

Sol. z = x + iy = (x, y) is said to be complex number if x, y Ī R

hence (i4, i8) = (1, 1) is a complex number.