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Pertanyaan

Nilai pada persamaan x = cos 12 0 ∘ + sin 15 0 ∘ − 3 tan 21 0 ∘ = ....

Nilai  pada persamaan

  1. negative 1 half square root of 3

  2. 1 half square root of 3 plus 1 half

  3. negative square root of 3

  4. 1 half square root of 3 plus 1 half

  5. square root of 3

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N. Ayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Padang

Jawaban terverifikasi

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Pembahasan

cos invisible function application 120 degree equals negative 1 half  sin invisible function application 150 degree equals 1 half  tan invisible function application 210 degree equals 1 third square root of 3      cos invisible function application 120 degree plus sin invisible function application 150 degree minus 3 tan invisible function application 210 degree equals negative 1 half plus 1 half minus 3 open parentheses 1 third square root of 3 close parentheses  equals negative square root of 3

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