Cov txheej txheem:
- Nov yog cov kauj ruam yooj yim los ua kom yooj yim rau kev qhia algebraic:
- Nov yog ib qho piv txwv ntawm qhov kev txiav txim ntawm kev ua haujlwm li cas:
Video: Yuav ua li cas yog ib tug yooj yim daim ntawv ntawm kev qhia?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Feem ntau, ib kev qhia yog nyob rau hauv daim ntawv yooj yim tshaj plaws thaum nws yog qhov yooj yim los siv. Piv txwv li, qhov no: 5x + x − 3. Nws yooj yim dua li: 6x − 3. Txoj hauv kev los pab koj ua kom yooj yim : • Ua ke Zoo li Cov Cai.
Tsis tas li ntawd, koj sau ib qho kev qhia yooj yim li cas?
Nov yog cov kauj ruam yooj yim los ua kom yooj yim rau kev qhia algebraic:
- tshem cov kab lus los ntawm kev sib npaug.
- siv cov kev cai exponent kom tshem tawm cov kab lus nyob rau hauv cov nqe lus nrog exponents.
- ua ke zoo li cov ntsiab lus los ntawm kev ntxiv cov coefficients.
- muab cov tsis tu ncua.
Tsis tas li ntawd, coefficients yog dab tsi? Hauv lej, a coefficient yog ib qho kev sib txuam hauv qee lub sij hawm ntawm polynomial, series, lossis ib qho kev qhia; nws feem ntau yog tus lej, tab sis tej zaum yuav yog ib qho kev qhia. Piv txwv li, yog tias y raug suav hais tias yog ib qho parameter hauv cov lus hais saum toj no, tus coefficient ntawm x yog −3y, thiab qhov tsis tu ncua coefficient yog 1.5 + y.
Tsis tas li ntawd, koj daws cov lus hais li cas?
Nov yog ib qho piv txwv ntawm qhov kev txiav txim ntawm kev ua haujlwm li cas:
- (3 + 5)2 x 10+ 4.
- Ua ntej, ua raws li P, kev ua haujlwm hauv kab lus:
- = (8)2 x 10+ 4.
- Tom qab ntawd, ua raws li E, kev ua haujlwm ntawm tus exponent:
- Luas = 64 x 10 + 4.
- Tom ntej no, ua multiplication:
- = 640 + 4.
- Thiab kawg, ua ntxiv:
Ua li cas koj thiaj paub thaum lub ntsiab lus qhia tau yooj yim?
A rational qhia raug txiav txim siab yooj yim yog tias tus lej thiab tus lej tsis muaj qhov sib xws.
Pom zoo:
Yuav ua li cas yog daim ntawv cog lus sib txawv ntawm daim ntawv cog lus ionic?
Qhov sib txawv ntawm cov ionic thiab covalent daim ntawv cog lus yog tias covalent daim ntawv cog lus yog tsim thaum ob lub atoms sib koom electrons. Ionic bonds yog lub zog uas tuav ua ke electrostatic zog ntawm kev nyiam ntawm cov ions oppositely them. Ionic bonds muaj qhov sib txawv electronegativity ntau dua lossis sib npaug li 2
Dab tsi yog qhov txawv ntawm daim ntawv qhia lub hom phiaj thiab daim ntawv qhia lub hom phiaj tshwj xeeb?
Qhov tseem ceeb hauv daim ntawv qhia dav dav yog nyob ntawm qhov chaw. Phab ntsa daim duab qhia chaw, feem ntau daim ntawv qhia pom nyob rau hauv atlases, thiab txoj kev maps yog tag nrho cov nyob rau hauv qeb no. Thematic maps, tseem hu ua daim ntawv qhia tshwj xeeb, qhia txog thaj chaw faib khoom ntawm ib lub ntsiab lus lossis qhov tshwm sim
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Yuav ua li cas ib tug geologist yuav qhia tau hais tias ib tug quav yog ib tug syncline thiab anti-line?
Geologic Structures (Part 5) Anticlines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips deb ntawm lub crest. Synclines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips mus rau lub trough ntawm lub quav. Koj tuaj yeem nco qab qhov sib txawv los ntawm kev ceeb toom tias anticlines tsim "A" zoo, thiab synclines tsim hauv qab ntawm "S."
Koj paub li cas thaum ib qho kev qhia nyob rau hauv nws daim ntawv yooj yim tshaj plaws?
Yog li, txhawm rau paub tias qhov kev qhia algebraic yog nyob rau hauv nws daim ntawv yooj yim tshaj plaws, koj yuav tsum ua kom paub tseeb tias koj tsis tuaj yeem faib nws ntxiv. Txij li thaum koj tuaj yeem tshem tawm (X + Y) ntawm qhov sib npaug, (X^2 - Y^2) / (X + Y) = (X - Y), uas yog daim ntawv yooj yim ntawm qhov kev qhia no