Koj sau Biconditional li cas ob txoj cai?
Koj sau Biconditional li cas ob txoj cai?

Video: Koj sau Biconditional li cas ob txoj cai?

Video: Koj sau Biconditional li cas ob txoj cai?
Video: Quas Koj Ntxhais Rau Kuv Tub - Cai Hawj Feat. Maiv Xis Vaj「Official MV」 2024, Kaum ib hlis
Anonim

Nws yog kev sib xyaw ua ke ntawm ob conditional nqe lus, “yog ob kab segments yog congruent ces lawv yog sib npaug ntev" thiab "yog ob kab segments yog sib npaug ntev ces lawv congruent. " A biconditional yog muaj tseeb yog tias thiab tsuas yog ob qho tib si xwm txheej muaj tseeb. Bi- xwm txheej yog sawv cev los ntawm lub cim ↔ lossis ⇔.

Tsis tas li ntawd, thaum twg koj tuaj yeem sau Daim Ntawv Qhia Biconditional?

Thaum twg koj muab ib tug conditional nqe lus thiab nws txoj kev sib tham, koj tsim ib biconditional nqe lus . A biconditional nqe lus yog a nqe lus uas ua tau sau rau hauv daim ntawv "p yog thiab tsuas yog q." Qhov no txhais tau tias "yog p, ces q" thiab "yog q, ces p." Cov biconditional "p yog thiab tsuas yog q" ua tau kuj sau ua "p iff q" lossis p? q.

Tsis tas li ntawd, puas tsuas yog Biconditional? IF THIAB YOG YOG , yog a biconditional lus, txhais tau hais tias ob nqe lus muaj tseeb los yog ob qho tib si yog cuav. Yog li nws yog qhov tseem ceeb thiab IF ” nqe lus uas ua haujlwm ob txoj hauv kev.

Kuj tseem yuav paub, cov nqe lus raws cai thiab Biconditional yog dab tsi?

Thaum peb sib tov ob cov lus qhia txoj kev no, peb muaj ib biconditional . Lus txhais: A biconditional nqe lus txhais tau tias muaj tseeb thaum twg ob qho tib si muaj qhov tseeb qhov tseeb. Hauv cov lus tseeb saum toj no, p q yog qhov tseeb thaum p thiab q muaj qhov tseeb qhov tseeb, (piv txwv li, thaum ob qho tib si muaj tseeb lossis ob qho tib si tsis tseeb.)

Ib qho piv txwv ntawm Biconditional nqe lus yog dab tsi?

Biconditional Nqe Lus piv txwv Cov biconditional nqe lus rau ob pawg no yuav yog: Lub polygon tsuas muaj plaub sab yog thiab tsuas yog tias lub polygon yog plaub fab. Lub polygon yog quadrilateral yog thiab tsuas yog tias lub polygon tsuas muaj plaub sab.

Pom zoo: