nurinjazlina
nurinjazlina
27-10-2020
Mathematics
contestada
2 tan x cosec x = - 3
Respuesta :
thisisimpossible
thisisimpossible
27-10-2020
2 tan x cosec x = -3
tan x = sin x / cos x
cosec x = 1 / sin x
2(sin x / cos x)(1/sin x) = -3
2(1 / cos x) = -3
cos x = -2/3
x = 132 degrees
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