Shaqada Trigonometric: Kosinka xagasha (cos)
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Labadda xagal ba'an α (COS α) waa saamiga lugta ku xigta (bhoos u dhaca hypotenuse (c) saddex xagal qumman.

cos α = b / c

Shaqada Trigonometric: Kosinka xagasha (cos)

Tusaale ahaan:

b = 4

c = 5

cos α = b / c = 4/5 = 0.8

goob cosine

Shaqada cosine waxay u qoran tahay sida y = ka (x). Garaafka ayaa la yiraahdaa mawjada cosine guud ahaanna waxay u egtahay sidan:

Shaqada Trigonometric: Kosinka xagasha (cos)

Mowjadda Cosine - shaqo xilliyeed oo leh xilliga ugu muhiimsan T = 2π.

Guryaha Cosine

Hoosta qaabka shaxda ah waa sifooyinka ugu muhiimsan ee cosine ee leh qaababka:

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» data-order=»Shaqada Trigonometric: Kosinka xagasha (cos)«>Shaqada Trigonometric: Kosinka xagasha (cos)Shaqada Trigonometric: Kosinka xagasha (cos)

» data-order=»Shaqada Trigonometric: Kosinka xagasha (cos)«>Shaqada Trigonometric: Kosinka xagasha (cos)Shaqada Trigonometric: Kosinka xagasha (cos)

» data-order=»Shaqada Trigonometric: Kosinka xagasha (cos)«>Shaqada Trigonometric: Kosinka xagasha (cos)Shaqada Trigonometric: Kosinka xagasha (cos)

Propertyformula
dhabanadadhabanadaAqoonsiga trigonometric PythagoreanCosine of xagal laba jibaaranWadarta xaglahaKala duwanaanshaha xagashaWadarta cosines
farqi cosin
Product of cosines
Wax soo saarka cosine iyo sine
derivative cosineCosine ka mid ahEuler formulaОбратная к косинусу функция

- Eto obratnaya k kosynusu fynksyya x, при -1≤x≤1.

Если косинус у raвняется х (cos y = x), значит арккосинус x waa loo siman yahay у:

arckoos x = cos-1 x = y

Tusaale ahaan:

arccos 1 = cos-1 1 = 0° (0 raд)

Таблица косинусов

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