yog tias tsis sib npaug yog (lej) ib nqe lus uas ob nqe lus tsis zoo ib yam thaum tsis sib xws yog (lej) ib nqe lus uas ob qhov ntau ib qho tshwj xeeb tsawg dua (los yog ntau dua) lwm lub cim: lossis ≥ lossis ≠, raws li qhov tsim nyog.
Puas tsis sib npaug thiab tsis sib xws?
Qee zaum, lo lus "tsis sib npaug" tuaj yeem suav hais tias yog lub ntsiab lus " tsis sib xws ", thaum lwm qhov, qhov tsis sib npaug tsuas yog tshwj tseg rau cov nqe lus uas tsis sib xws. yog "tsis sib npaug" (≠).
Koj paub qhov tsis sib xws li cas?
Txiav txim siab, los ntawm kev saib qhov ntxoov ntxoo ntawm koj daim duab, seb y tsawg dua x / 2 lossis ntau dua x / 2. Koj tuaj yeem ntsaws qhov taw tes los ntawm qhov ntxoov ntxoo ntawm koj daim duab. Piv txwv li, xav tias lub ntsiab lus (7, 8) yog ntxoov ntxoo. Vim tias y, qhov no, ntau dua x/2 (8 > 3.5), koj qhov tsis sib xws yog y > x/2.
Dab tsi yog qhov sib txawv ntawm qhov sib npaug thiab qhov tsis sib xws?
Ib qho kev sib npaug yog ib nqe lus ua lej uas qhia qhov sib npaug ntawm ob nqe lus thaum tsis sib xws yog cov lus lej uas qhia tau tias qhov kev qhia tsawg dua lossis ntau dua li lwm tus. 2. Ib qho kev sib npaug qhia qhov sib npaug ntawm ob qhov sib txawv thaum qhov tsis sib xws qhia qhov tsis sib xws ntawm ob qhov sib txawv.
txhais li cas thaum nws hais lossis tsis sib xws?
A compound inequality yog ib kab lus uas muaj ob nqe lus tsis sib xws koom nrog lo lus "los yog" lossis los ntawm lo lus "thiab." "Thiab" qhia tias ob nqe lus ntawm cov kab lus sib xyaw muaj tseeb tib lub sijhawm. … “Lossis” qhia tias, tsuav yog nqe lus twg muaj tseeb, tag nrho cov kab lus sib xyaw yeej muaj tseeb.
