Question
Question: Which of the following is a complex number –...
Which of the following is a complex number –
A
(1, –1)
B
(0, i)
C
(i4, i8)
D
(tan2π,tanπ)
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.