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Trigonometri 2

Trigonometri 2. 11 IPA 1 : Kamis, 4 – 11 – 10 11 IPA 2 : Jumat, 5 – 11 – 10 11 IPA 3 : Jumat, 5 – 11 – 10. Jadwal ulangan ke 7:. Sudut ganda:. Sudut setengah:. jika diganti minus, didapat 2 cos a sin b. “RUMUS KALI” SIN & COS. jika diganti minus, didapat 2 sin a sin b.

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Trigonometri 2

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  1. Trigonometri 2

  2. 11 IPA 1 : Kamis, 4 – 11 – 10 11 IPA 2 : Jumat, 5 – 11 – 10 11 IPA 3 : Jumat, 5 – 11 – 10 Jadwal ulangan ke 7:

  3. Sudut ganda:

  4. Sudut setengah:

  5. jika diganti minus, didapat 2 cos a sin b “RUMUS KALI” SIN & COS

  6. jika diganti minus, didapat 2 sin a sin b “RUMUS KALI” SIN & COS

  7. Jika A = a + b B = a – b maka: 2a = A + B a = (A+B)/2 b = (A–B)/2 “RUMUS JUMLAH” SIN & COS

  8. Jika sudut a dan b lancip sin a = 3/5 sin b = 7/25 tentukan cos (a + b) = ? Soal 1

  9. Segitiga ABC siku-siku di C. Jika sin a . sin b = 2/5 dan sin (a – b) = 5a tentukan a = ? B Soal 2 A C

  10. Jika sin a . cos a = 8/25 Tentukan: Soal 3

  11. Pada segitiga lancip: jika tan a = 1/2 dan tan b = 1/4 maka tan (2a – b) = ? Soal 4

  12. Pada segitiga ABC: jika tan a = –3 dan tan b = 1 maka tan c = ? Soal 5

  13. Jika tan a = p dan a di kuadran I maka cos 2a = ? Soal 6

  14. Jika tan a = p dan a di kuadran I maka sin 2a = ? Soal 7

  15. Jika tan a/2 = p dan a di kuadran I maka sin a = ? Soal 8

  16. Jika 2 cos2a = 1 + 2 sin 2a maka tan a = ? Soal 9

  17. Segitiga ABC siku-siku di C. jika cos (a+c) = p maka sin a + cos b = ? Soal 10

  18. Hitunglah cos 105o + cos 15o = ? Soal 11

  19. Hitunglah 2 cos 35o cos 25o – 2 sin 30o sin 20o – 2 cos 35o sin 5o = ? Soal 12

  20. Jika a + b = 30o dan cos a . cos b = 3/4 tentukan cos (a – b) = ? Soal 13

  21. C b a A B c Buktikan Soal 14

  22. Jika sin a = 4/5 dan a lancip tentukan tan a/2 = ? Soal 15

  23. RUMUS-RUMUS TRIGONOMETRI

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