kendallbailey01 kendallbailey01
  • 01-02-2018
  • Mathematics
contestada

sinxcosxtanx+sinxcosx=0

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Аноним Аноним
  • 01-02-2018
sin x  cos x ( tan x - 1) = 0

so one solution is tan x = 1   giving x = 45,  225 degrees ( for x 0 to 360)

sin x cos x = 0   so either sinx = 0  giving x = 0, 180, 360 degrees
 or cos x = 0 giving x = 90, 270

answer is 0, 45, 90, 180, 225, 270, 360  degrees  (  for  0 =< x >= 360)
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