Cov kab hluav taws xob sib tshooj puas tuaj yeem sib tshooj?
Cov kab hluav taws xob sib tshooj puas tuaj yeem sib tshooj?

Video: Cov kab hluav taws xob sib tshooj puas tuaj yeem sib tshooj?

Video: Cov kab hluav taws xob sib tshooj puas tuaj yeem sib tshooj?
Video: Hluav taws xob tseem ceeb: Xaiv qhov nqi phiaj xwm rau koj 2024, Kaum ib hlis
Anonim

Cov duab hluav taws xob yog ob rays tias ob qho tib si pib los ntawm ib qho kev sib koom ua ke thiab tawm mus rau qhov tseeb rov qab cov lus qhia. Vim yog ob leeg no rays (QA thiab QB hauv daim duab saum toj no) tsim ib txoj kab ncaj nraim los ntawm cov ntsiab lus kawg Q. Thaum ob rays yog rov qab , cov ntsiab lus A, Q thiab B yog collinear.

Raws li txoj cai, puas yog ob txoj kab hluav taws xob ib txwm ua ib kab?

Ib khub ntawm rov qab rays yog ob rays uas muaj 'tib qhov kawg thiab txuas ntxiv mus rov qab cov lus qhia. Yog li, ua ke ib khub opposite rays ib txwm ua ib ncaj kab.

Ib tug kuj yuav nug, dab tsi yog ob txoj hauv kev rau npe lub teeb? Rays feem ntau muaj npe nyob rau hauv ob txoj kev:

  1. Los ntawm ob lub ntsiab lus. Hauv daim duab saum toj kawg nkaus ntawm nplooj ntawv, txoj kab hluav taws xob yuav raug hu ua AB vim pib ntawm point A thiab hla B ntawm nws txoj kev mus rau infinity.
  2. Los ntawm ib tsab ntawv. Cov kab hluav taws xob saum toj no tsuas yog hu ua "q".

Tib neeg kuj nug, puas cov duab hluav taws xob sib tshuam?

4. Kev txhais: Rov qab Rays : Cov duab hluav taws xob yog rays uas dag tib kab thiab sib tshuam hauv ib lub ntsiab lus xwb. Txhais: Rov qab Rays : Cov duab hluav taws xob yog rays uas dag tib kab thiab sib tshuam hauv ib lub ntsiab lus xwb.

Puas yog ob kab hauv kev sib tshuam cov dav hlau skew?

Ob kab hauv ib yam dav hlau los yog sib tshuam los yog parallel. Yog ob kab sib tshuam thiab tsim lub kaum sab xis, lub kab yog perpendicular. Skew kab yog kab uas tsis yog-coplanar thiab tsis sib tshuam . Ob lub dav hlau thaum uas tig mus yog lawv yeej tsis sib tshuam.

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