1. Qator yaqinlashishining zaruriy sharti nimadan iborat? A agar qator yaqinlashsa, n cheksiz o’sib borganda uning n


cosx ni Makloren qatoriga yoying. A) ; B) ; C) ; D) 16


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Test 111

15. cosx ni Makloren qatoriga yoying.
A) ; B) ; C) ; D)


16. integral qutb koordinatalarda qanday ifodalanadi?
A) B)
C) D)


17. Darajali qatorning Koshi alomatiga ko’ra yaqinlashish radiusi:
A) ; B) ; C) ; D)


18. yaqinlashish radiusi va intervalini toping.
A) R=1, (-1,∞); B) R=1, (-1, 1); C) R=1, (1,∞); D) R=1, [-1, 1];

19. , D y=x va y=x2 chiziqlar bilan chegaralangan soha.


A) B) C) D)

20. D markazi koordinata boshida, radiusi 1 ga teng doira.


A) B) C) D)


21. Imf(z) – nima?
A) Kompleks funksiya haqiqiy qismi B) Kompleks funksiya
C) Kompleks funksiya mavhum qismi D) Kompleks son


22.
A) 1 B) ∞ C) 0 D) -1


23. Eyler formulasini ko’rsating.


A) ez =ex(cosy+isiny) B) ez =ex(cosy-isiny)
B) ez =iexsiny D) ez = iexcosx


24.
A) B) C) D)


25.
A) B) C) D)


26.
A) 1+i B) C) D)


27. ni mavhum qismini toping.
A) B) C) D)


28. f(z)=x3-3xy2+i(3x2y-y3), f ’(z)=?
A) f ’(z)=3z B) f ’(z)=3z2 C) f ’(z)=3x2-6xy D) f ’(z)=4z2


29. w=(iz)3, w’(-1+i)=?
A) -6 B) -3i C) -6i D) 6i


30. z0=-i nuqtada f(z)=(z+1)2 funksiyani Teylor qatoriga yoying.
A) f(z)=-2i+2(1-i)(z+i)+2(z+i)2 B) f(z)=2i+2(1-i)(z+i)+2(z+i)2
C) f(z)=-2i+2(1-i)(z+i)-2(z+i)2 D) f(z)=2i-2(1-i)(z+i)+2(z+i)2
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