Menene iyakar aiki

A cikin wannan ɗaba'ar, za mu yi la'akari da mene ne iyakar aiki, yadda aka keɓe shi da ƙayyadaddun shi. Mun kuma lissafta waɗannan wuraren don fitattun siffofi.

Ma'anar iyaka

domain saitin dabi'u ne x, wanda aka ayyana aikin, watau akwai y. Wani lokaci ana kiransa yankin aiki.

• x - m m (hujja);
• y – dogara m (aiki).

Alamar al'ada ta aiki: y=f(x).

aiki dangantaka ce tsakanin masu canji guda biyu (sets). A lokaci guda, kowane x yayi daidai da takamaiman ƙima ɗaya kawai y.

Fassarar geometric na yankin ma'anar aiki shine tsinkayar jadawali da yayi daidai da shi akan axis abscissa (0x).

Saitin ƙimar ayyuka - duk dabi'u yyarda da aikin akan yankin sa. Daga ra'ayi na lissafi, wannan shine tsinkayar jadawali akan y-axis (0y).

Yankin ma'anar ana nuna shi azaman D (f). A maimakon haka f, bi da bi, ana nuna takamaiman aiki, misali: D (x²), D(cos x) da dai sauransu.

Sa'an nan kuma yawanci ana sanya alamar daidai kuma ana rubuta takamaiman dabi'u:

1. Ta hanyar semicolon, muna nuna iyakokin hagu da dama na tazara daidai da ƙimar akan axis. 0x (tsare a cikin wannan tsari).
2. Idan iyakar tana cikin ma'anar ma'anar, sanya madaurin murabba'i kusa da shi, in ba haka ba, shingen zagaye.
3. Idan babu iyakar hagu, mun saka a maimakon haka "- ∞", dama - "∞" (karanta a matsayin "minus/plus infinity").
4. Idan ya cancanta, idan kuna son haɗa jeri da yawa, ana yin wannan ta amfani da wata alama ta musamman "∪".

Misali:

• [3; 10] shine saitin dukkan dabi'u daga uku zuwa goma hade;
• [4; 12) - daga hudu hade zuwa goma sha biyu na musamman;
• (-2; 7) – daga rabe biyu keɓaɓɓen zuwa da bakwai hadawa.
• [-10; -4) ∪ (2, 8) – daga debe goma hadawa zuwa ragi hudu na musamman kuma daga biyu zuwa takwas na musamman.

lura:

• Ana rubuta duk lambobin da suka fi sifili kamar haka: (0; ∞);
• Duk mara kyau: (-∞; 0);
• Duk ainihin lambobi: (-∞; ∞) ko kawai R.

Yankunan ayyuka daban-daban

» odar data =»«>

Gabaɗaya ra'ayi	aiki	Yankin ma'anar (D)
Linear		Tare da harbi	«>	Akidar	«>
tare da logarithm	zanga-zanga	Duk ainihin lambobi, tare da takamaiman kewayon ya dogara da ƙima atabbatacce ko korau, lamba ko juzu'i.
Power	Kamar aikin ma'auni.
Ba tare da gaskiya ba	Kosin
Tangent	Abun ciki	Mail navigation Rikodi na baya Shigar da ta gabata: Raba littattafan aikin Excel Shiga ta gaba Shiga ta gaba: Tsarin Sharadi a cikin Excel PivotTables Bar Tsokaci Отменить ответ Your email address ba za a buga. Da ake bukata filayen suna alama * Comment * Sunan rana * Emel * Shafin Ajiye sunana, imel da adreshin gidan yanar gizon a cikin wannan mazuruftar don sharhi na na gaba.