Video: Leej twg invented zoo sib xws?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv geometry, ob daim duab tau hais tias zoo sib xws yog tias lawv muaj (ib qho thiab) tib yam, tab sis tsis tas yuav tsum muaj qhov loj me. Lub cim "~" uas peb siv los qhia zoo sib xws yog vim tus German mathematician Gottfried Wilhelm Leibniz (1646-1716).
Tsis tas li ntawd, qhov zoo sib xws siv li cas hauv lub neej tiag tiag?
Kev siv ntawm zoo sib xws Daim duab peb sab yog qhov tseem ceeb tshaj plaws uas nws dhau ntawm peb mus txog rau lub cev ntsuas qhov deb thiab qhov siab nrog cov cuab yeej ntsuas yooj yim. Kev txheeb xyuas cov duab ntxoov ntxoo uas ua cov duab peb sab peb tuaj yeem txiav txim siab qhov siab ntawm qhov khoom. Feem ntau siv txhawm rau txheeb xyuas kev ruaj ntseg ntawm cov choj.
Qhov thib ob, qhov zoo sib xws yog dab tsi? A zoo sib xws yog ib yam los yog alikeness. Thaum koj muab ob qho piv txwv - khoom siv lub cev, lub tswv yim, lossis kev paub - koj feem ntau saib lawv zoo sib xws thiab lawv qhov sib txawv. Qhov txawv yog qhov opposite ntawm zoo sib xws . Ob lub squares thiab duab plaub muaj plaub sab, uas yog a zoo sib xws nruab nrab ntawm lawv.
Ntxiv mus, lub ntsiab lus ntawm kev zoo sib xws hauv lej yog dab tsi?
Geometry. (ntawm cov duab) muaj cov duab zoo ib yam; muaj cov sab proportional thiab coj cov ces kaum sib npaug: zoo sib xws daim duab peb sab. lej . (ntawm ob square matrices) ntsig txog los ntawm txhais tau tias ntawm a zoo sib xws kev hloov pauv.
Muaj pes tsawg hom kev zoo sib xws?
Muaj plaub zoo sib xws xeem rau daim duab peb sab. Yog tias ob lub kaum sab xis ntawm ib daim duab peb sab sib npaug rau ob lub kaum sab xis ntawm lwm daim duab peb sab, ces ob daim duab peb sab zoo sib xws.
Pom zoo:
Leej twg invented lub tsev vajvoog?
90 - 168 AD Claudius Ptolemy nthuav dav ntawm Hipparchus chords hauv ib lub voj voog
Leej twg invented txoj cai ntawm sines?
Nrog rau kev ntsuas ntawm ob sab thiab lub kaum sab xis, qhov no tuaj yeem ua rau ib lossis ob daim duab peb sab. Johannes von Muller yog tus uas nrhiav tau Txoj Cai ntawm Sines. Muller yug kuv Lub Ib Hlis 3, 1752, hauv ib lub nroog me me hauv qab Franconia (Dukedom of Coburg)
Puas yog ob txoj kab sib luag zoo sib xws lossis tsis sib xws?
Yog tias ob qhov sib npaug piav txog kab sib luag, thiab yog li cov kab uas tsis sib tshuam, qhov system yog ywj siab thiab tsis sib haum. Yog hais tias ob qhov sib npaug piav txog tib kab, thiab yog li cov kab uas hla tus lej tsis kawg, lub kaw lus yog nyob ntawm thiab sib xws
Koj tuaj yeem ua pov thawj li cas 2 daim duab peb sab zoo sib xws siv lub kaum sab xis sab SAS zoo sib xws postulate?
SAS Similarity Theorem hais tias yog ob sab hauv ib daim duab peb sab yog proportional rau ob sab hauv lwm daim duab peb sab thiab lub kaum sab xis nyob rau hauv ob qho tib si congruent, ces ob daim duab peb sab zoo ib yam. Ib qho kev hloov pauv zoo sib xws yog ib lossis ntau qhov kev hloov pauv tsis tu ncua ua raws li kev dilation
Leej twg yog leej niam leej txiv pab txhawb cytoplasmic qub txeeg qub teg?
Nyob rau hauv cov ntaub ntawv ntawm cytoplasmic qub txeeg qub tes, cov teebmeem ntawm niam txiv. Qhov no feem ntau yog vim muaj kev koom tes ntau dua ntawm cytoplasm rau zygote los ntawm niam txiv poj niam dua li txiv neej niam txiv. Feem ntau ovum txhawb ntau cytoplasm rau zygote dua cov phev