sooyong94
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Well... I think so...
Solve de Moivre's Theorem: Sin 3x & Cos 3x
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sooyong94 said:Well... I think so...
Can't think why not. You've found three roots with the trig identity that you correctly got through deMoivre. They all work. Cubic equations have a maximum of three roots. We've disposed of the idea t=1 is one of them. Can't think of what else could go wrong.
sooyong94
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Thanks then. :D
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sooyong94 said:Thanks then. :D
Very welcome.
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