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Postać trygonometryczna liczby 3e^{-2i} to

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Postać trygonometryczna liczby $3e^{-2i}$ 3e^{-2i} to

$2(\cos 3-i\sin 3)$ 2(\cos 3-i\sin 3)

$3(\sin(-2)+i\cos(-2))$ 3(\sin(-2)+i\cos(-2))

$3(\cos 2-i\sin2 )$ 3(\cos 2-i\sin2 )

$3(\cos(-2)+i\sin(-2))$ 3(\cos(-2)+i\sin(-2))

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