Video: Koj pom thaj tsam ntawm Monomial li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yuav nrhiav tau cheeb tsam ntawm no square, peb muab lub sab ntev ntawm nws tus kheej, los yog square nws. Cov cheeb tsam ,,4x ib2, yog cov khoom ntawm tus lej (4) thiab qhov sib txawv nrog tus lej suav tag nrho (x2). Hauv lwm lo lus, nws yog a monomial , too. Yog li qhov tshwm sim ntawm kev sib faib ob monomias yog-lwm monomial !
Tsis tas li ntawd, koj yuav muab ntau npaum li cas thiab faib Monomials?
Rau ntau a monomial los ntawm tus lej paub, yooj yim ntau tus coefficient ntawm tus lej. Rau ntau a monomial los ntawm qhov sib txawv, yooj yim ntau qhov sib txawv ntawm lwm qhov sib txawv; qhov no feem ntau yuav ua rau tus lej. Rau faib a monomial los ntawm tus lej paub, yooj yim faib tus coefficient los ntawm tus lej hauv nqe lus nug.
Kuj Paub, yog squared ib Monomial? Kev sib ntau Monomials Xav txog ib square nws el2x. Txhawm rau nrhiav thaj chaw ntawm no square , peb muab cov sab ntev ntawm nws tus kheej, los yog square nws. luas, 4 x2, yog cov khoom ntawm tus lej (4) thiab qhov sib txawv nrog tus lej suav tag nrho (x2). Hauv lwm lo lus, nws yog a monomial , too.
Ib yam 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 tias yog ib qho parameter hauv cov lus hais saum toj no, qhov coefficient ntawm x yog −3y, thiab qhov tsis tu ncua coefficient yog 1.5 + y.
Yuav ua li cas rau koj nrhiav thaj tsam ntawm daim duab peb sab?
Rau nrhiav tus cheeb tsam ntawm a daim duab peb sab , muab lub hauv paus los ntawm qhov siab, thiab muab faib los ntawm 2. Kev faib los ntawm 2 los ntawm qhov tseeb tias ib qho parallelogram tuaj yeem muab faib ua 2 daim duab peb sab . Piv txwv li, nyob rau hauv daim duab mus rau sab laug, lub cheeb tsam ntawm txhua tus daim duab peb sab yog sib npaug rau ib nrab ntawm cheeb tsam ntawm parallelogram.
Pom zoo:
Yuav ua li cas koj pom thaj tsam ntawm oblique prism?
Cavalieri lub hauv paus ntsiab lus hais tias, qhov ntim ntawm oblique prism zoo ib yam li ntawm txoj cai prism nrog sib npaug puag thiab qhov siab. Cov cheeb tsam saum npoo tuaj yeem suav ua 2 * puag ncig + thaj chaw ntawm cov parallelograms. Sau lub kaum sab xis thiab sab ntev lossis qhov siab thiab lub hauv paus cheeb tsam lossis ntim
Koj pom qhov arc ntev thiab thaj tsam li cas?
Lub kaum sab xis nruab nrab uas yog subtended los ntawm ib qho loj arc muaj qhov ntsuas loj dua 180 °. Cov mis arc ntev yog siv los nrhiav qhov ntev ntawm qhov arc ntawm lub voj voog; l=rθ l = r θ, qhov twg θ yog nyob rau hauv radians. Sector cheeb tsam pom A = 12θr2 A = 1 2 θ r 2, qhov twg θ yog nyob rau hauv radians
Yuav ua li cas koj pom thaj tsam ntawm daim duab hauv square units?
Thaj tsam yog ntsuas hauv 'square' units. Lub cheeb tsam ntawm daim duab yog tus naj npawb ntawm cov squares yuav tsum tau npog nws tag nrho, zoo li cov vuas rau hauv pem teb. Thaj tsam ntawm ib square = sab sij hawm sab. Txij li txhua sab ntawm ib lub square yog tib yam, nws tuaj yeem tsuas yog qhov ntev ntawm ib sab squared
Yuav ua li cas koj pom thaj tsam ntawm lub pyramid siv lub vas?
VIDEO Hais txog qhov no, tag nrho thaj chaw ntawm lub pyramid yog dab tsi? Cov Qhov chaw ntawm lub Pyramid Thaum txhua sab ntsej muag zoo ib yam: [Paj Thaj chaw ] + 1 / 2 × Perimeter × [Slant Length] Ib tug kuj yuav nug, ua li cas koj nrhiav tau qhov chaw ntawm ib tug kheej kheej?
Koj pom thaj tsam ntawm lub ntsej muag siv lub ntsej muag li cas?
Qhov chaw saum npoo yog qhov sib npaug ntawm thaj chaw ntawm txhua lub ntsej muag (lossis qhov chaw) ntawm 3D duab. Ib lub cuboid muaj 6 lub ntsej muag. Txhawm rau nrhiav thaj chaw saum npoo ntawm lub cuboid, ntxiv cov cheeb tsam ntawm tag nrho 6 lub ntsej muag. Peb tseem tuaj yeem sau qhov ntev (l), dav (w), thiab qhov siab (h) ntawm lub prism thiab siv cov qauv, SA = 2lw + 2lh + 2hw, txhawm rau nrhiav thaj chaw saum npoo