Murakkab funksiyaning hosilasi Reja
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Murakkab funksiyaning hosilasi
Murakkab funksiyaning hosilasi Reja : Murakkab funksiya haqida ma‘lumot Murakkab funksiya hosilalar jadvali Murakkab funksiya yoki funksiyaning funksiyasi tushunchasini qaraymiz. Agar y = f (u) , u = φ (x) lar o‘z argumentlarining differensiallanuvchi funksiyalari bo‘lsa, y = f ( φ (x)) murakkab funksiya x bo‘yicha hosilaga ega bo‘lib, u formula yordamida topiladi. Bu holda u ni oraliq argument deyiladi. Isbot. y = f (u) , u = φ (x) differensiallanuvchi funksiyar bo‘lgani uchun bo‘lgani uchun Demak, murakkab funksiyaning hosilasi funksiyaning oraliq argument bo‘yicha olingan hosilasi bilan oraliq argumentdan erkli o‘zgaruvchi bo‘yicha olingan hosilaning ko‘paytmasiga teng. Ayrim hollarda formula ko‘rinishda ham yoziladi. 1-misol. Agar g (t) = t n , t = f (x) bo‘lsa, g /(t) = (t n)/ = nt n-1 ∙t/ = n (f (x))n-1 ∙ f / (x) bo‘ladi. 2-misol. cos (x 3 –x-2) funksiyaning hosilasini topamiz. t = x 3 – x2 – 2 , g (t) = const bo‘lsin. U holda: g/ (t) = -sint, f/ (x) = 3x2 - 2x . U holda (cos ( x 3 –x2 -2)) / = -sin (x 3 – x2 -2) ∙ (3x 3 -2x). Murakkab funksiya hosilalar jadvali 1. (cu) / = cu/ 2. 3. 4. (u n) / = nu n-1 ∙ u / 5. 6. (a n) / = a n ln a ∙ u / 7. (e u) / = e u ∙ u / 8. 9. 10. (sin u) / = cos u ∙ u / 11. (cos u) / = -sin u ∙ u / 12. 13. 14. (arcsin u) / = 15. (arcos u) / = 16. (arctg u) / = 17. (arcctg u) / = 3-misol. y = (x-2) / ∙ x3 y / = ? y / = 2 (x-2) ∙ x 3 + (x-2)2 ∙ 3x2 = x2 (x-2) ∙ (2x+3x-6) = x2 (x-2) ∙ (5x-6) 4- misol. Tayanch iboralar Hosila, funksiya, murakkab funksiya, daraja, sinus, kosinus, teskati funksiya, trigonometrik funksiya Nazorat savollari Hosilalarni toping 1. 2. 3. 4. 5. 6. Test savollari Ushbu funksiyaning hosilasi ni hisoblang A) -2 B) C) 4 D) E) -4 2. Agar f (x) = 3x2 ∙ e sinx -8 bo‘lsa, f / (x) ning qiymatini hisoblang A) 3π (2+π) B) 3π2(3- π) C) 2π (3+π) D) 6π E) 3π (2- π) 3. Hosila ni hisoblang A) B) C) D) 2 E) -4 C) 2 Download 65.5 Kb. Do'stlaringiz bilan baham: |
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