a complex number: who is more right?

sgrazotis shared this question 10 years ago
Answered

when i made a point: 5cos40 + 5isin40


I got the point (3.86,3.18)


with mine calculator i got:(3.83,3.21)


who is more right?


:question:

https://ggbm.at/553631

Comments (4)

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Point C is just an arbitrary point on your circle, you can drag it without changing alfa.


You need to construct the point so that it is on the circle, i.e. C = ( a cos(alfa), a sin(alfa) )

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the problem is that geogebra gives diffrent answer than mine calculator (casio).

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well, imoved the point a littie, and now it's o.k.


thanks.

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Helló!


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