Question
On donne sin x=0.8
Calculer cos x et tan x (0
Calculer cos x et tan x (0
Asked by: USER1678
51 Viewed
51 Answers
Answer (51)
Sin x = 0,8 = 4 / 5
Les cotes 3, 4 et 5 (hypotenuse) forme un triangle rectangle.
Cos X = 3 / 5 = 0.6
Tan X = 4 / 3 = 1,333
Cos² x = 1 - Sin² x = 1 - 0,8² = 1 - 0,64 = 0,36
Cos x = 0,6
Tan x = Sin X / Cos X = 0,8/0,6 = 1,333
Les cotes 3, 4 et 5 (hypotenuse) forme un triangle rectangle.
Cos X = 3 / 5 = 0.6
Tan X = 4 / 3 = 1,333
Cos² x = 1 - Sin² x = 1 - 0,8² = 1 - 0,64 = 0,36
Cos x = 0,6
Tan x = Sin X / Cos X = 0,8/0,6 = 1,333