Hyperbolic Functions Formula Flashcards

1
Q

sinh(x)

A

eˣ - e⁻ˣ/2

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2
Q

cosh(x)

A

eˣ + e⁻ˣ/2

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3
Q

tanh(x)

A

sinh(x)/cosh(x) = [eˣ - e⁻ˣ] / [eˣ + e⁻ˣ] or [e²ˣ -1] / [e²ˣ +1]

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4
Q

cosech(x)

A

2/eˣ - e⁻ˣ

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5
Q

sech(x)

A

2/eˣ + e⁻ˣ

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6
Q

coth(x)

A

cosh(x)/sinh(x) = [eˣ + e⁻ˣ] / [eˣ - e⁻ˣ] or [e²ˣ +1] / [e²ˣ -1]

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7
Q

d/dx sinh(x)

A

cosh(x)

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8
Q

d/dx cosh(x)

A

sinh(x)

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9
Q

d/dx tanh(x)

A

sech²(x)

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10
Q

d/dx cosech(x)

A

-cosech(x) ⋅ coth(x)

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11
Q

d/dx sech(x)

A

-sech(x) ⋅ tanh(x)

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12
Q

d/dx coth(x)

A

-cosech²(x)

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13
Q

cosh²(x) - sinh²(x)

A

1

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14
Q

tanh²(x) + sech²(x)

A

1

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15
Q

coth²(x) - cosech²(x)

A

1

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16
Q

sinh(x ± y)

A

sinh(x) ⋅ cosh(y) ± sinh(y) ⋅ cosh(x)

17
Q

cosh(x ± y)

A

cosh(x) ⋅ cosh(y) ± sinh(x) ⋅ sinh(y)

18
Q

sinh(2x)

A

2[sinh(x) ⋅ cosh(x)]

19
Q

cosh(2x)

A

cosh²(x) ⋅ sinh²(x)

20
Q

sinh²(x)

A

[cosh(2x) - 1] /2

21
Q

cosh²(x)

A

[cosh(2x) + 1] /2

22
Q

sinh⁻¹(x)

A

ln |x + C|

23
Q

cosh⁻¹(x)

A

ln |x + √(x² - 1)|

24
Q

tanh⁻¹(x)

A

1/2ln |(1 + x) / (1 - x)|

25
Q

cosech⁻¹(x)

A

1/2ln |(x + 1) / (x - 1)|

26
Q

sech⁻¹(x)

A

ln |{1 + √(1 - x²)} / x|

27
Q

coth⁻¹(x)

A

ln |1/x + √(1 - x²) / |x||

28
Q

d/dx sinh⁻¹(x)

A

1/√(x² + 1)

29
Q

d/dx cosh⁻¹(x)

A

1/√(x² - 1)

30
Q

d/dx tanh⁻¹(x)

A

1 / (1 - x²)

31
Q

d/dx cosech⁻¹(x)

A

-1 / [|x|√(1 + x²)]

32
Q

d/dx sech⁻¹(x)

A

-1 / [x√(1 - x²)]

33
Q

d/dx coth⁻¹(x)

A

1 / (1 - x²)