2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev sib tshuam ntawm Teeb yog dab tsi? Nyob rau hauv txoj kev xav, rau ob pawg A thiab B, qhov kev sib tshuam txhais tau tias yog txheej ntawm tag nrho cov ntsiab lus hauv teeb A uas tseem muaj nyob hauv teeb B. Peb siv lub cim '∩' uas txhais tau tias 'kev sib tshuam ntawm'.
Koj pom qhov kev sib tshuam ntawm ob pawg li cas?
Kev sib tshuam ntawm ob qhov muab teev yog qhov loj tshaj plaws uas muaj tag nrho cov ntsiab lus uas muaj rau ob qho tib si. Txhawm rau nrhiav qhov kev sib tshuam ntawm ob pawg A thiab B yog cov txheej txheem uas muaj tag nrho cov ntsiab lus uas muaj rau ob qho tib si A thiab B. Lub cim rau denoting kev sib tshuam ntawm cov teev yog '∩'.
Kev sib tshuam ntawm ob lub teeb yog dab tsi?
Kev sib tshuam ntawm ob lub teeb yog txheej txheem uas nyob hauv thawj txheej thiab thib ob txheej.
∩ txhais li cas hauv lej?
∩ Lub cim ∩ txhais tau tias kev sib tshuam. Muab ob pawg S thiab T, S ∩ T yog siv los qhia txog cov teeb {x|x ∈ S thiab x ∈ T}. Piv txwv li {1, 2, 3}∩{3, 4, 5}={3}. / Lub cim / txhais tau tias tshem tawm ntawm lub teeb.
Kev sib tshuam ntawm kev teeb tsa rau nws tus kheej yog dab tsi?
Kev sib tshuam ntawm lub teeb nrog nws tus kheej yog qhov teeb tsa nws tus kheej. Qhov no yog vim kev sib tshuam yog ib txheej ntawm cov ntsiab lus. Ntawm no, tag nrho cov ntsiab lus ntawm lub teeb yog ib txwm nrog nws tus kheej. Qhov kev sib tshuam tshwm sim, yog li, tau teeb tsa nws tus kheej.
Pom zoo:
Puas yog kev sib ntaus sib tua ntawm kev sib ntaus sib tua?
Kev sib ntaus sib tua ntawm Hastings, uas Anglo-Saxon huab tais Harold II tau sim tiv thaiv nws lub tebchaws los ntawm kev tawm tsam ntawm William, duke ntawm Normandy (tom qab hu ua William tus Conqueror), tau tshwm sim rau 14 October 1066.
Dab tsi ntawm cov hauv qab no yog qhov tshwm sim ntawm kev sib ntaus sib tua ntawm lub pas dej brandywine?
Cov txiaj ntsig ntawm Kev Sib Tw ntawm Brandywine Creek yog dab tsi? Washington tsuas yog sim ncua kev ntes Philadelphia kom nws ua tiav li no. Cov tub rog Asmeskas tsis tau poob siab ntau thiab lawv tau khiav tawm ntawm British. Washington tseem tuaj yeem kawm los ntawm nws qhov yuam kev ntawm kev tso nws txoj cai sab xis qhib.
Qhov twg yog qhov kev txiav txim siab rau kev tsis lees paub thiab rau kev ua kom muaj kev tawm tsam ntawm kev tawm tsam?
Kev qhuab ntuas tau siv los ntawm cov thawj coj loj hauv cov tub rog Romanrau txim rau cov koom haum lossis pab pawg loj ua txhaum cai, xws li kev ua phem, kev tawm tsam, kev tawm tsam, thiab kev tsis ncaj ncees, thiab rau lub pacification ntawm rebellious legions.
Qhov twg yog qhov kev sib raug zoo ntawm stereochemical ntawm ob khub ntawm cov molecules?
Enantiomers thiab diastereomers tsuas yog ob qho kev sib raug zoo stereochemical uas koj tuaj yeem muaj ntawm ob lub molecules. Cov stereoisomers yog ob lub molecules uas ua tiav ob qhov kev xav tau hauv qab no: Ob lub molecules yuav tsum muaj tib lub qauv molecular, thiab.
Qhov twg yog qhov cuam tshuam ntawm kev sib cais cov paj huam rau hauv stanzas?
Stanzas muab cov kws sau paj huam nrog txoj hauv kev pom kev sib koom ua ke cov tswv yim hauv zaj paj huam, thiab ntawm muab qhov chaw ntawm cov tswv yim sib cais lossis ntu ntawm paj huam. Stanzas kuj pab rhuav cov paj huam mus rau hauv me me uas yooj yim nyeem thiab nkag siab.
