Questions tagged 'Complex Numbers'
5 questions
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°)?
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°)?
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?
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?
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...