Cov txheej txheem:
Video: Yuav ua li cas koj pom qhov cuam tshuam ntawm kev tsis sib xws?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Xwb, peb tuaj yeem txiav txim siab x- cuam tshuam thiab y- cuam tshuam ntawm tus qauv daim ntawv linear kev tsis sib xws los ntawm kev hloov y = 0, ces daws rau x thiab hloov x = 0, ces daws rau y feem. Recall tias thex- cuam tshuam yog tus nqi ntawm x thaum y = 0 thiab lawv- cuam tshuam yog tus nqi ntawm y thaum x = 0.
Ntawm no, koj pom Y cuam tshuam li cas ntawm qhov tsis sib xws?
Koj ua tau nrhiav tus y - cuam tshuam bylooking ntawm daim duab thiab pom qhov point hla tus y axis. Cov ntsiab lus no ib txwm muaj x coordinate ntawm zero. Qhov no yog lwm txoj kev nrhiav tus y - cuam tshuam , yog koj paub cov equation, ua y - cuam tshuam yog qhov kev daws rau qhov sib npaug thaum x = 0. Wb nrhiav qhov sib npaug rau kab no.
Tsis tas li ntawd, koj yuav ua li cas rov kho cov kab tsis sib xws? Yuav ua li cas kos ib kab tsis sib xws
- Rearrange qhov sib npaug kom "y" nyob rau sab laug thiab txhua yam ntawm sab xis.
- Teem lub "y = kab" (ua rau nws yog ib txoj kab ruaj khov rau y≤ ory≥, thiab ib kab dashed rau y)
- Duab ntxoov ntxoo saum kab rau "ntau dua" (y> lossis y≥) lossis hauv qab kab rau "tsawg dua" (y< lossis y≤).
Hauv qhov no, cov kev daws teeb meem rau qhov tsis sib xws yog dab tsi?
"Solving" ib kev tsis sib xws txhais tau tias nrhiav txhua yam ntawm nws kev daws teeb meem . A " daws ''of ib kev tsis sib xws yog tus lej uas thaum hloov pauv rau qhov sib txawv ua rau kev tsis sib xws ib nqe lus tseeb. Thaum peb hloov 8 rau x, lub kev tsis sib xws ua 8-2 > 5. Yog li, x=8 is a daws tus kev tsis sib xws.
Koj yuav daws qhov tsis sib npaug ntawm plaub npaug li cas?
Yuav kom daws tau qhov tsis sib xws quadratic, ua raws li cov kauj ruam no:
- Kho qhov tsis sib xws xws li qhov sib npaug.
- Ua kom cov ntsiab lus ciam teb cov voj voog yog qhov qub tsis sib xws nrog kev sib luag; txwv tsis pub, ua cov ciam teb pointopen voj voog.
- Xaiv cov ntsiab lus los ntawm txhua cheeb tsam tsim los ntawm cov ciam teb.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm cov rog yuav cuam tshuam rau kev sib cuam tshuam ntawm cov dej molecules?
1 Teb. Qhov tseeb, dej muaj tag nrho peb hom kev sib xyaw ua ke, nrog qhov muaj zog tshaj plaws yog hydrogen bonding. Txhua yam muaj London dispersion yuam cov kev sib cuam tshuam tsis muaj zog yog ib ntus dipoles uas tsim los ntawm kev hloov ntawm electrons nyob rau hauv ib lub molecule
Dab tsi yog qhov txawv ntawm kev cuam tshuam kev cuam tshuam thiab kev cuam tshuam cuam tshuam?
Paub qhov txawv ntawm kev cuam tshuam kev tsim kho thiab kev cuam tshuam puas tsuaj. Kev tsim kev cuam tshuam tshwm sim thaum lub crests ntawm ob nthwv dej ntxiv ua ke. Kev cuam tshuam kev puas tsuaj tshwm sim thaum lub crest ntawm ib yoj raug txo los ntawm lub trough ntawm lwm tus
Vim li cas koj tig lub cim tsis sib xws thaum koj sib npaug lossis faib los ntawm qhov tsis zoo?
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Dab tsi yog qee qhov piv txwv ntawm kev cuam tshuam tsis zoo ntawm tib neeg ib puag ncig kev cuam tshuam?
Kev ua liaj ua teb tuaj yeem cuam tshuam tsis zoo rau peb ib puag ncig, suav nrog kev poob ntawm biodiversity, dej paug, kev hloov pauv huab cua, av yaig thiab muaj kuab paug
Koj yuav daws qhov kev sib npaug lossis qhov tsis sib xws li cas?
Txhawm rau daws qhov tsis sib xws siv cov kauj ruam hauv qab no: Kauj Ruam 1 Tshem tawm cov feem ntau los ntawm kev muab tag nrho cov ntsiab lus los ntawm tus lej qis tshaj ntawm txhua feem. Kauj Ruam 2 Ua kom yooj yim los ntawm kev sib txuas zoo li cov ntsiab lus ntawm txhua sab ntawm qhov tsis sib xws. Kauj Ruam 3 Ntxiv lossis rho tawm kom tau txais qhov tsis paub ntawm ib sab thiab tus lej ntawm lwm qhov