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  • ctg135 градус?
    1
  • tg90 градус?
    мәні жоқ
  • tg45 градус?
    1
  • tga*ctga=?
    1
  • sin150 градус?
    1/2
  • cos90 градус?
    0
  • ctg135 градус?
    -1
  • tga*ctga=?
    1
  • sin30 градус?
    1/2
  • sin^2a+cos^2a=?
    1
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