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Nilai dari cos 15 5 0 + cos 2 5 0 − cos 13 5 0 = ...

Nilai dari

  1. 1 half square root of 3

  2. 1 half square root of 2

  3. 1 half

  4. negative 1 half

  5. negative 1 half square root of 2

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S. Nur

Master Teacher

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Pembahasan

cos space 155 to the power of 0 plus cos space 25 to the power of 0 minus space cos 135 to the power of 0  equals cos space open parentheses 180 to the power of 0 minus 25 to the power of 0 close parentheses plus space cos space 25 to the power of 0 minus space cos space 35 to the power of 0  equals negative cos space 25 to the power of 0 plus cos space 25 to the power of 0 minus space cos space 135 to the power of 0  equals negative space cos space 135 to the power of 0  equals negative open parentheses negative 1 half square root of 2 close parentheses  equals 1 half square root of 2

Latihan Bab

Konsep Kilat

Derajat dan Radian

Perbandingan Sisi (Trigonometri)

Sudut Istimewa (Trigonometri)

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