KALKULUS (Derivatif – Fungsi Trigonometri) Instruktur : Ferry Wahyu Wibowo, S.Si., M.Cs. Teorema 1: (sin x) ' cos x d (sin x) atau cos x dx Teorema 2: d cos x sin x dx Teorema 3a: d (sec x) sec x tan x dx Teorema 3b: d (cscx) ' csc x cot x dx Teorema 4: d (tan x) ' sec2 x dx dan d (cot x) csc2 x dx Contoh-contoh 1. d ( x sin x cos x) dx 2. d (sin 2 x) dx 3. d 3 ( x sec x) dx 4 d csc x dx x Soal-soal 1. 2. 2 x sin x 3 x cos x 1 sin x 3. cos x 1 sin x 4. cos x 5. 1 3 sec x tan x 3 6. x sec x csc x 7. 3 x Soal-soal 8. sin x tan x 12. sin x x cos x 9. x cos x cot x 13. cos x x sin x 10. 11. 2 cot x 1 x2 x 1 sec x 14. 2 x sin x 2 cos x x 2 cos x 15 3x 2 sin x 6 sin x x 3 cos x 6 x cos x 23 sin x cos 2 x 16 tan(x ) x 24 ( x sin x)(x cos x) 17 2 x cos x 2 sin x x sin x 25 sin 2 x 1 cos 2 x 18 (3x 2 6) cos x ( x 2 6) sin x 26 1 cos x x sin x 19 sin x sin x cos x 27 x tan x 20 sin x cos x 28 21 x2 1 x sin x x 2 sin x cos x 22 2 2 x 2 sin x x 1 2 Terima Kasih