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cos 1 5 ∘ cot 16 5 ∘ cos 7 5 ∘ sec 1 5 ∘ ​ = ....

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N. Ulfah

Master Teacher

Jawaban terverifikasi

Jawaban

hasil dari cos 1 5 ∘ cot 16 5 ∘ cos 7 5 ∘ sec 1 5 ∘ ​ adalah .

hasil dari  adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank minus end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 11 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 6 end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank plus end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 19 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 2 end cell end table.

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Pembahasan

Ingat! sec x = cos x 1 ​ cot x = tan x 1 ​ cos ( a + b ) = cos a ⋅ cos b − sin a ⋅ sin b tan ( a − b ) = ( 1 + tan a ⋅ tan b tan a − tan b ​ ) Sehingga, ​ = = = = = = = = = = = = = = ​ c o s 1 5 ∘ c o t 16 5 ∘ c o s 7 5 ∘ s e c 1 5 ∘ ​ c o s ( 60 − 45 ) ∘ c o t ( 210 − 45 ) ∘ c o s ( 30 + 45 ) ∘ s e c ( 60 − 45 ) ∘ ​ c o s ( 60 − 45 ) ∘ ⋅ tan ( 210 − 45 ) ∘ 1 ​ c o s ( 30 + 45 ) ∘ ⋅ cos ( 60 − 45 ) ∘ 1 ​ ​ ( c o s 6 0 ∘ ⋅ c o s 4 5 ∘ + s i n 6 0 ∘ ⋅ s i n 4 5 ∘ ) ( tan 21 0 ∘ − tan 4 5 ∘ 1 + tan 21 0 ∘ ⋅ tan 4 5 ∘ ​ ) ( c o s 3 0 ∘ ⋅ c o s 4 5 ∘ − s i n 3 0 ∘ ⋅ s i n 4 5 ∘ ) ( cos 6 0 ∘ ⋅ cos 4 5 ∘ + sin 6 0 ∘ ⋅ sin 4 5 ∘ 1 ​ ) ​ ( 2 1 ​ ⋅ 2 1 ​ 2 ​ + 2 1 ​ 3 ​ ⋅ 2 1 ​ 2 ​ ) ⎝ ⎛ ​ 3 1 ​ 3 ​ − 1 1 + 3 1 ​ 3 ​ ⋅ 1 ​ ⎠ ⎞ ​ ( 2 1 ​ 3 ​ ⋅ 2 1 ​ 2 ​ − 2 1 ​ ⋅ 2 1 ​ 2 ​ ) ⎝ ⎛ ​ 2 1 ​ ⋅ 2 1 ​ 2 ​ + 2 1 ​ 3 ​ ⋅ 2 1 ​ 2 ​ 1 ​ ⎠ ⎞ ​ ​ 3 1 ​ 3 ​ − 1 ( 4 1 ​ 2 ​ + 4 1 ​ 6 ​ ) ( 1 + 3 1 ​ 3 ​ ) ​ 4 1 ​ 2 ​ + 4 1 ​ 6 ​ 4 1 ​ 6 ​ − 4 1 ​ 2 ​ ​ ​ 3 1 ​ 3 ​ − 1 4 1 ​ 2 ​ + 12 1 ​ 6 ​ + 4 1 ​ 6 ​ + 4 1 ​ 2 ​ ​ 2 ​ + 6 ​ 6 ​ − 2 ​ ​ ​ 3 1 ​ 3 ​ − 1 2 1 ​ 2 ​ + 3 1 ​ 6 ​ ​ 2 ​ + 6 ​ 6 ​ − 2 ​ ​ ​ ( 2 ​ + 6 ​ ) ( 2 1 ​ 2 ​ + 3 1 ​ 6 ​ ) ( 6 ​ − 2 ​ ) ( 3 1 ​ 3 ​ − 1 ) ​ 1 + 3 2 ​ 3 ​ + 3 ​ + 2 2 ​ − 6 ​ − 3 1 ​ 6 ​ + 2 ​ ​ 3 9 + 5 3 ​ ​ 3 6 2 ​ − 4 6 ​ ​ ​ 9 + 5 3 ​ 6 2 ​ − 4 6 ​ ​ × 9 − 5 3 ​ 9 − 5 3 ​ ​ 81 − 75 54 2 ​ − 30 6 ​ − 36 6 ​ + 60 2 ​ ​ 6 − 66 6 ​ + 114 2 ​ ​ − 11 6 ​ + 19 2 ​ ​ Dengan demikian, hasil dari cos 1 5 ∘ cot 16 5 ∘ cos 7 5 ∘ sec 1 5 ∘ ​ adalah .

Ingat!

Sehingga,

Dengan demikian, hasil dari  adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank minus end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 11 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 6 end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank plus end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 19 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 2 end cell end table.

Latihan Bab

Konsep Kilat

Jumlah dan Selisih Dua Sudut

Sudut Rangkap dan Sudut Paruh

Perkalian Trigonometri

73

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