Ayyukan Trigonometric: Cosine na kusurwa (cos)
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definition

Cosine na m kwana α (COS α) shine rabon kafa na kusa (bzuwa hypotenuse (c) a cikin madaidaicin alwatika.

cos α = b / c

Ayyukan Trigonometric: Cosine na kusurwa (cos)

Misali:

b = 4

c = 5

cos α = b / c = 4/5 = 0.8

makircin cosin

An rubuta aikin cosine azaman y = kowa (x). Ana kiran jadawali kalaman cosine kuma a dunkule yana kama da haka:

Ayyukan Trigonometric: Cosine na kusurwa (cos)

Cosine wave - aiki na lokaci-lokaci tare da babban lokaci T = 2 π.

Abubuwan da aka bayar na Cosine Properties

A ƙasa a cikin nau'i na tebur sune manyan kaddarorin cosine tare da dabaru:

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Propertyformula
FasaliFasaliPythagorean trigonometric ainihiCosine na kwana biyuCosine na jimlar kusurwoyiCosine na bambancin kwanaJimlar cosines
bambancin kabila
Samfurin cosines
Samfurin cosine da sine
asalin cosineCosine hadeEuler dabaraОбратная к косинусу функция

– Eto obratnaya k kosynusu fynksiya x, da -1≤x.1.

Если косинус у daidai х (cos y = x), значит арккосинус x daidai yake da у:

baka x = ku-1 x = y

Alal misali:

arccos 1 = cos-1 1 = 0° (0 raд)

Таблица косинусов

180 °π-1
150 °5 p/6135 °3 p/4120 °2 p/3-1 / 2
90 °Π / 20
60 °Π / 31/2
45 °Π / 430 °Π / 60 °01
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