An introduction & some main pointers of hyperbolic functions, domain & range, graphs, identities, integration, logarithmic form, inverse hyperbolic functions, leibnitz theorem with it's proof
Hyperbolic Functions
Hyperbolic functions are defined as certain combinations of ex and e -x and surprisingly have many
properties similar to trigonometric functions.
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Hyperbolic Functions Domain Range
Cosh x (-∞ , + ∞) (-∞ , + ∞)
Sinh x (-∞ , + ∞) [1, ∞)
Tanh x (-∞ , + ∞) (-1,1)
Coth x (-∞ , 0) U (0 , + ∞) (-∞ , - 1) U (1 , +∞)
Sech x (-∞ , + ∞) (0,1]
Csch x (-∞ , 0) U (0 , + ∞) (-∞ , 0) U (0 , + ∞)
, Hyperbolic Identities
1. sinh (-x) = – sinh(x)
2. cosh (-x) = cosh (x)
3. tanh (-x) = - tanh x
4. coth (-x) = - coth x
5. sech (-x) = sech x
6. csc (-x) = - csch x
7. cosh 2x = 1 + 2 sinh2(x) = 2 cosh2x - 1
8. cosh 2x = cosh2x + sinh2x
9. sinh 2x = 2 sinh x cosh x
f(x) d/dx f(x)
Sinh x Cosh x
Cosh x Sinh x
Tanh x sech²𝑥
Coth x −csch²𝑥
Sech x −sech𝑥tanh𝑥
Csch x −csch𝑥coth𝑥
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