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Matematika Kelas X RUMUS-RUMUS TRIGONOMETRI 1. Trigonometri sin(90 º- α) = cos α cos(90 º- α) = sin α tan(90 º- α) = cot α sin(180 º- α) = sin α cos(180 º- α) = -cos α tan(180 º- α) = -tan α sin(90 º+ α) = cos α cos(90 º+ α) = -sin α tan(90 º+ α) = -cot α sin(180 º+ α) = -sin α cos(180 º+ α) = -cos α tan(180 º+ α) = tan α 2. Aturan sinus: 3. Aturan cosinus: 4. Luas segitiga: 5. Persamaan trigonometri: Persamaan dasar sinus: sin x = sin α x = α + k . 360 x = 180 – α + k . 360 Persamaan dasar cosinus: cos x = cos α Mathematics, Physics, and Chemistry Courses – Fun ‘n Smart http://rumus-soal.blogspot.com

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Matematika Kelas X

RUMUS-RUMUS TRIGONOMETRI

1. Trigonometrisin(90 º- α) = cos αcos(90 º- α) = sin αtan(90 º- α) = cot αsin(180 º- α) = sin αcos(180 º- α) = -cos αtan(180 º- α) = -tan αsin(90 º+ α) = cos αcos(90 º+ α) = -sin αtan(90 º+ α) = -cot αsin(180 º+ α) = -sin αcos(180 º+ α) = -cos αtan(180 º+ α) = tan α

2. Aturan sinus:

3. Aturan cosinus:

4. Luas segitiga:

5. Persamaan trigonometri:Persamaan dasar sinus: sin x = sin α

x = α + k . 360x = 180 – α + k . 360

Persamaan dasar cosinus: cos x = cos αx = α + k . 360x = – α + k . 360

Persaman dasar tangen: tan x = tan αx = α + k . 180

Mathematics, Physics, and Chemistry Courses – Fun ‘n Smart http://rumus-soal.blogspot.com