complex numbers 2 Flashcards

1
Q

2cosθ = ?

A

z + 1/z

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2
Q

z + 1/z = ?

A

2cosθ

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3
Q

2isinθ = ?

A

z - 1/z

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4
Q

z - 1/z = ?

A

2isinθ

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5
Q

2isin(nθ) = ?

A

z^n - 1/z^n

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6
Q

z^n - 1/z^n = ?

A

2isin(nθ)

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7
Q

2cos(nθ) = ?

A

z^n + 1/z^n

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8
Q

z^n + 1/z^n = ?

A

2cos(nθ)

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