Cos^2 (А) + Sin^2 (А) = 1Соs^2 (A)= 1 - 0,64=0,36Cos (A) = 0.6Tg (A) = Sin (A) / Cos(A).Tg (A) = 0.8 / 0.6= 4/5 / 3/5 = 4/5 * 5/3 = 4/3 = 1.1/3Ctg (A) = Cos (A) / Sin (A).Ctg (A) = 0.6 / 0.8 = 0,75От-т: 0,6 ; 1.1/3 ; 0,75
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Cos^2 (А) + Sin^2 (А) = 1
Соs^2 (A)= 1 - 0,64=0,36
Cos (A) = 0.6
Tg (A) = Sin (A) / Cos(A).
Tg (A) = 0.8 / 0.6= 4/5 / 3/5 = 4/5 * 5/3 = 4/3 = 1.1/3
Ctg (A) = Cos (A) / Sin (A).
Ctg (A) = 0.6 / 0.8 = 0,75
От-т: 0,6 ; 1.1/3 ; 0,75