Determine the trigonometric form of z=-2i.

Expert Answers

An illustration of the letter 'A' in a speech bubbles

We have to determine the trigonometric form of z = -2i

The absolute value of z = -2i

sqrt [ 0^2 + (-2)^2]

=> sqrt 4

=> 2

and the the argument is -90 as the real component is zero.

Therefore the required result is 2 , -90 degrees

Approved by eNotes Editorial Team

Posted on

Soaring plane image

We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

  • 30,000+ book summaries
  • 20% study tools discount
  • Ad-free content
  • PDF downloads
  • 300,000+ answers
  • 5-star customer support
Start your 48-Hour Free Trial