perplexus.info :: Just Math : Complex Number and Power Puzzle

Complex Number and Power Puzzle (Posted on 2015-11-23)

Determine all values of θ with 0 ≤ θ ≤ 360^o for which the complex number
z = cos θ + i*sin θ satisfies z²⁸ - z⁸ -1 = 0

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

θ={15,75,105,165,195,255,285,345}
For an explanation, refer to the solution submitted by Jer in this location.

Comments: ( You must be logged in to post comments.)

	Subject	Author	Date
	Solution	Jer	2015-11-26 09:51:41

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