Soal Latihan Trigonometri Dasar.docx

LEMBAGA PENDIDIKAN PERCONTOHAN RUMAH MATEMATIKA DAN SAINS Jl. Sungai Raya Dalam Ruko Puri Akcaya 1 No.1 Telp. (0561) 6714075 Pontianak, Indonesia 045/ KEP/LKP/ 1991

050/DPMTKPTSP/2018

AHU-870.AH.02.01 NO 22

SOAL LATIHAN TRIGONOMETRI DASAR 1. cos 150° senilai dengan ... 12

𝜋

𝜋

2. Diketahui sin 𝐴 = 13 , untuk 2 < 𝐴 < 𝜋. Nilai dari sin (2 − 𝐴) adalah ... 3. The Cartesian coordinates from the polar coordinates (2, 210°) is ... 4. The value of tan 300° is .... 5. It is given that sin 𝛼 = 𝑎 for 𝑎 be an obtuse angle. The value of tan 𝛼 is ... 𝜋

6. At the interval 2 < 𝑎 < 𝜋, the value of tan 𝑎 = 2,4. The value of sin 𝑎 is ... 7. The graphic of the function 𝑦 = cos 𝑥; 0 ≤ 𝑥 ≤ 2𝜋 reach the maximum for 𝑥 = ⋯ 1

8. If sin 𝑥 = 2 , 0 ≤ 𝑥 ≤ 360°, the possible values of 𝑥 are ... 9. Given 𝑓(𝑥) = sin 2𝑥 with its domain {0°, 45°, 180°, 270°, 360°). The range of function 𝑓 is ... 10. It is given that sin 𝑥 = 0,6 in which the value of 𝑥 is between 90° and 180°. The value of tan 𝑥 is ... 11. The right triangle PQR has Q as its right angle. If the length of PR is 15 cm and 5

sec 𝑃 = 3 , the value of cos 𝑅 is ... 12. It is given that 𝐴(4, 210°) and 𝐵(8, 150°). The distance across both points is ... 13. The polar coordinates of (2, −2√3) is ... 1

14. If tan 2 𝑥 = √𝑝, then the value of sin 𝑥 is ...

sin 270°⋅cos 135°

15. The value of sin 150°⋅cos 225° is ... 𝜋

16. If tan 𝑥 = 2, then the value of 2 sin(𝑥 + 𝜋) + 3 cos (𝑥 − 2 ) is ... 24

𝜋

17. If sin 𝑝 = 25 and 2 ≤ 𝑝 ≤ 𝜋, the value of sec 𝑝 = ⋯ 18. Draw the graph of function 𝑓(𝑥) = 2 sin 2𝑥 + 3.