Rau qhov kev hloov pauv twg yog daim duab thiab qhov ua ntej hauv kev taw qhia tawm?

Cov txheej txheem:

Rau qhov kev hloov pauv twg yog daim duab thiab qhov ua ntej hauv kev taw qhia tawm?
Rau qhov kev hloov pauv twg yog daim duab thiab qhov ua ntej hauv kev taw qhia tawm?

Video: Rau qhov kev hloov pauv twg yog daim duab thiab qhov ua ntej hauv kev taw qhia tawm?

Video: Rau qhov kev hloov pauv twg yog daim duab thiab qhov ua ntej hauv kev taw qhia tawm?
Video: YWJ KOJ SIAB Official music video by: Dang Thao 2024, Lub peb hlis ntuj
Anonim

Ib txhais lus lossis swb yog ib qho isometry uas txhua lub ntsiab lus ntawm daim duab txav mus rau tib qhov deb thiab tib txoj kev. Ib qho kev xav yog ib qho isometry uas lub preimage thiab cov duab muaj opposite orientations.

Qhov kev hloov pauv twg yog daim duab thiab qhov preimage muaj qhov taw qhia tib yam?

Kev txhais. "Kev txhais lus" tsuas yog txhais tau tias txav mus. Hauv kev txhais lus, txhua qhov taw tes ntawm cov duab yuav tsum txav mus rau tib qhov deb thiab nyob rau tib txoj kev. Hauv kev txhais lus, qhov loj ntawm Daim Duab yog qhov loj tib yam li Daim Duab Ua Ntej.

Kev hloov pauv dab tsi muaj qhov sib txawv?

Ib kev xav yog kev hloov pauv. Kev taw qhia: Kev taw qhia yog hais txog kev npaj cov ntsiab lus, txheeb ze rau ib leeg, tom qab kev hloov pauv tau tshwm sim.

Nyob rau hauv hom kev hloov pauv twg yog qhov preimage thiab cov duab sib koom ua ke?

Vim tias daim duab ntawm daim duab hauv qab kev txhais lus, kev xav, lossis kev sib hloov yog sib haum rau nws qhov preimage, translations, reflections, thiab rotations yog piv txwv ntawm congruence transformations. A congruence transformation is a transformation in which the duab thiab preimage congruent.

Isometry yog dab tsi uas ib daim duab thiab nws cov duab muaj qhov sib txawv?

Reflection. Ib qho isometry uas ib daim duab thiab nws cov duab muaj qhov sib txawv. Kev txhais lus. Ib qho isometry uas qhia tag nrho cov ntsiab lus ntawm daim duab tib qhov deb thiab nyob rau tib qho kev taw qhia.

Pom zoo: