Home › AP EAPCET (Engineering) › Mathematics › Complex Numbers › What is the multiplicative inverse of the imagin…
What is the multiplicative inverse of the imaginary unit i?
A1
Bi
C-i
D-1
Answer & Solution
Correct answer: C. -i
i times -i equals -i^2 = 1, so the inverse of i is -i.
Related questions
The argument of z is measured anticlockwise from which axis?How many distinct fifth roots does the number 1 have in the complex numbers?A real-coefficient polynomial has 2 + 3i as a root. Which must also be a root?What are the roots of x^2 - 2x + 5 = 0?Which of these is a square root of -16 in the complex numbers?Evaluate (1 + i) raised to the fourth power.Find the modulus of (1 + i) raised to the eighth power.If z = 2 - 3i, what is the real part of z squared?