Fonctions trigonométriques et hyperboliques Flashcards
1
Q
cosh x =
A
(e^{x} + x^{-x})/2
2
Q
sinh x =
A
(e^{x} - x^{-x})/2
3
Q
sin x =
A
(e^{ix} + x^{-ix})/2
4
Q
cos x =
A
(e^{xi} - x^{-xi})/2i
5
Q
cosh² x -sinh² x =
A
1
6
Q
1 - tanh² x =
A
sech² x
7
Q
sinh -x =
A
-sinh x
8
Q
cosh -x =
A
cosh x
9
Q
sinh 2x =
A
2sinh x cosh x
10
Q
cosh 2x =
A
cosh² x + sinh² x
