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Funções trigonométricas Flashcards

(30 cards)

1
Q

cos(x)

A

= [e^ix + e^-ix] / 2

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2
Q

sin(x)

A

= [e^ix - e^-ix] / 2i

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3
Q

cos(z+w)

A

cos(z) * cos(w) - sin(z) * sin(w)

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4
Q

sin(z+w)

A

sin(z) * cos(w) + cos(z) * sin(w)

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5
Q

cos(z+2𝝅)

A

= cos(z)

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6
Q

sin(z+2𝝅)

A

= sin(z)

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7
Q

cos(-z)

A

= cos(z)

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8
Q

sin(-z)

A

= - sin(z)

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9
Q

cos(z) = cos(w)

A

sse w = ±z + 2k𝝅

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10
Q

sin(z) = sin(w)

A

sse w = z + 2k𝝅 ou w = (𝝅-z) + 2k𝝅

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11
Q

cos^2 + sin^2

A

= 1

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12
Q

sin’(z)

A

= cos

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13
Q

cos’(z)

A

= -sin

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14
Q

limitadas?

A

não

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15
Q

holomorfas?

A

sim

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16
Q

sobrejetivas?

17
Q

injetivas?

18
Q

cosh(t)

19
Q

sinh(t)

A

= i * sin(it)

20
Q

cos(30º=π/6)

21
Q

cos(45º=π/4)

22
Q

cos(60º=π/3)

23
Q

sin(30º=π/6)

24
Q

sin(45º=π/4)

25
sin(60º=π/3)
(√3)/2
26
tan(30º=π/6)
(√3)/3
27
tan(45º=π/4)
1
28
tan(60º=π/3)
√3
29
cos^2(a)
= 1 + cos(2a) / 2
30
sin^2(a)
= 1 - cos(2a) / 2