Skip to main content

Questions tagged 'Complex Numbers'

5 questions

N
Nona Rowe

Feb 08, 2025

Find the cube roots of 8(cos 216° + i sin 216°).

Could you please help me find the cube roots of the complex number represented in polar form as 8(cos 216° + i sin 216°)?

A
Anonymous

Feb 06, 2025

Find the fifth roots of 243(cos 260° + i sin 260°).?

How can I find the fifth roots of the complex number represented in polar form as 243 (cos 260° + i sin 260°)?

A
Anonymous

Jan 23, 2025

Please help me answer to simplify (8i)(2i) ?

Could someone help me simplify the expression (8i)(2i)? Is the answer really as straightforward as 16i^2?

A
Anonymous

Nov 27, 2024

Express the complex number in trigonometric form. -4i my answer = 4(cos 180° + i sin 180°)

Please express the complex number -4i in trigonometric form. My answer is 4(cos 180° + i sin 180°). Is this correct?

A
Anonymous

Nov 17, 2024

Why does i^i = 0.207879576?

I was entering random expressions in my calculator and came across the result of ( i^i ), which is approximately 0.207879576. This result confuses me conceptually. How is it possible that the square r...