Video: Ib kab lus qhia li cas rau peb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A kab lus yog ib qho graphical tso saib cov ntaub ntawv raws tus lej kab nrog Xs lossis dots sau saum toj no cov lus teb los qhia cov naj npawb ntawm qhov tshwm sim ib qho lus teb tshwm nyob rau hauv cov ntaub ntawv teev. Xs lossis dots sawv cev rau qhov zaus. A kab lus yuav muaj outlier.
Cov lus nug tseem yog, kab lus qhia dab tsi rau koj?
A kab lus yog a daim duab uas qhia qhov zaus ntawm cov ntaub ntawv tshwm sim raws tus lej kab . Kab lus muab txoj hauv kev sai thiab yooj yim los npaj cov ntaub ntawv thiab siv tau zoo tshaj plaws thaum sib piv tsawg dua 25 tus lej sib txawv.
Qhov thib ob, qhov piv txwv ntawm kab lus yog dab tsi? A kab lus yog ib txoj hauv kev los tso saib cov ntaub ntawv raws tus lej kab . Kab lus kuj hu ua dot cov phiaj xwm . Hauv qab no yog ib qho piv txwv ntawm kab lus qhia qhov kev ncua deb 17 vaub kib taug kev hauv ib teev (peb paub tias nws yog 17 vaub kib vim tias muaj 17 dots ntawm kab lus ).
Kuj tseem paub yog, kab lus ua haujlwm li cas?
A kab lus yog a daim duab uas qhia cov ntaub ntawv siv tus lej kab . Tsim ib tug kab lus , ? ua ntej tsim tus lej kab uas suav nrog tag nrho cov nqi hauv cov ntaub ntawv teev. Tom ntej no, tso tus X (los yog dot) saum toj no txhua cov ntaub ntawv tus nqi ntawm tus lej kab.
Dab tsi yog ib feem ntawm kab lus?
Qhia cov ntaub ntawv hauv a kab lus nrog ib feem ntawm ib chav tsev thiab siv kab lus daws teeb meem (4. Ua a kab lus los tso saib cov ntaub ntawv teev kev ntsuas hauv ib feem ntawm ib chav (1/2, 1/4, 1/8). Daws cov teeb meem nrog ntxiv thiab rho tawm ntawm ib feem los ntawm kev siv cov ntaub ntawv qhia hauv kab lus.
Pom zoo:
Dab tsi yog qhov txawv ntawm kab rau kab voltage thiab kab rau nruab nrab voltage?
Qhov voltage ntawm ob kab (piv txwv li 'L1' thiab 'L2') yog hu ua kab rau kab (los yog theem rau theem) voltage. Qhov voltage hla txhua qhov winding (piv txwv li ntawm 'L1' thiab 'N' yog hu ua kab rau nruab nrab (lossis theem voltage)
Puas yog nws ua tau rau ob kab equipotential hla ob txoj kab hluav taws xob piav qhia?
Equipotential kab ntawm cov peev txheej sib txawv tuaj yeem tsis hla ib qho. Qhov no yog vim hais tias lawv yog, los ntawm kev txhais, ib txoj kab ntawm lub peev xwm tas li. Lub equipotential ntawm ib qho chaw hauv qhov chaw tuaj yeem tsuas muaj ib qho nqi xwb. Lus Cim: Nws yog ua tau rau ob kab sawv cev tib lub peev xwm hla
Cov nqe lus twg zoo tshaj plaws piav qhia txog qhov tseem ceeb ntawm cov lus qhia muaj nuj nqis?
Qhov tsis suav nrog tus nqi ntawm ib qho kev qhia rational yog qhov tseem ceeb uas tus denominator ntawm qhov kev qhia yog xoom. Tsis tas li ntawd, tus naj npawb ntawm zeros ntawm ib tug polynomial yeej ib txwm tsawg dua los yog sib npaug rau degree ntawm lub polynomial. Yog li ntawd, tus naj npawb ntawm cov txiaj ntsig tsis suav nrog cov lus qhia muaj txiaj ntsig tsis tuaj yeem tshaj li qib ntawm tus lej
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Qhov kab zauv twg sawv cev rau kab qhia ntawm daim duab Y 2x?
Slope-intercept form yog y = mx + b, qhov m yog txoj kab nqes thiab b yog y-intercept. Qhov no ua rau qhov sib npaug ntawm peb kab y = 2x + 0 lossis y = 2x