Cov txheej txheem:
- Txoj kab ncaj nraim puas muaj qhov sib npaug?
- Cov kab ntu puas muaj qhov sib txawv?
- Cov kab linear puas tuaj yeem ua rau nce lossis nqis?
- Koj paub li cas yog qhov ua haujlwm yog concave nce lossis nqis?
Video: Puas kab kab rov tav puas muaj qhov sib cais?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Xav paub tias daim duab ntawm kev ua haujlwm yog ib txoj kab ncaj nraim, qhov no tsis tsim nyog, puas yog? Yog li ntawd, tsis muaj qhov taw qhia ntawm concavity ntawm cov duab ntawm cov kab khiav haujlwm.
Txoj kab ncaj nraim puas muaj qhov sib npaug?
Kev sib kis tau los ntawm ob hom, nce thiab nqis. Qhov no yog ib yam khoom uas peb koom nrog x-intervals, yog li daim duab yuav raug concave rau ib pliag, thiab tom qab ntawd hloov mus rau concave down. Cia peb pib nrog ob peb txoj kab ncaj nraim, ib qho nce thiab ib qho zuj zus. Ib txoj kab ncaj nraim tsis concave los yog concave down
Cov kab ntu puas muaj qhov sib txawv?
A kev ua haujlwm ntawm ib qho kev sib txawv yog concave yog tias txhua ntu ntu koom nrog ob lub ntsiab lus ntawm nws daim duab tsis nyob saum daim duab ntawm ib qho twg. Symmetrically, ib qho kev ua haujlwm ntawm ib qho kev sib txawv yog convex yog tias txhua kab ntu koom nrog ob lub ntsiab lus ntawm nws daim duab tsis nyob hauv qab daim duab ntawm ib qho taw tes.
Cov kab linear puas tuaj yeem ua rau nce lossis nqis?
A kab ncaj yog txais tau rau kev sib tw nce toj lossis concave downward. Tab sis thaum peb siv cov ntsiab lus tshwj xeeb nruj me ntsis concave upward los yog nruj me ntsis concave downward ces ib tug ncaj kab tsis OK.
Koj paub li cas yog qhov ua haujlwm yog concave nce lossis nqis?
Yog f "(x) > 0, daim duab yog concave upward ntawm tus nqi ntawm x. Yog tias f "(x)=0, daim duab yuav muaj ib qho taw tes ntawm inflection ntawm tus nqi ntawm x. Txhawm rau txheeb xyuas, xav txog tus nqi ntawm f "(x) ntawm qhov tseem ceeb ntawm x rau ob sab ntawm qhov kev txaus siab. Yog tias f "(x) < 0, daim duab yog concave downwardntawm tus nqi ntawm x.
Pom zoo:
Puas cais cov kab sib cais ua mob ntau dua li cov hlua khi?
Puas spacers raug mob ntau dua li braces? Thaum cov spacers raug tso thawj zaug, koj yuav ntsib kev tsis xis nyob thiab mob me ntsis, tab sis lawv tsis mob ntau dua li cov braces Qhov no yog vim tsuas yog lub siab me ntsis thiab ntawm ob peb cov hniav.
Puas yog kev sib koom ua ke kab rov tav tuaj yeem thaiv los ntawm tsoomfwv?
Lub Tsev Haujlwm Saib Xyuas Kev Ncaj Ncees (DOJ) thiab Tsoom Fwv Teb Chaws Trade Commission (FTC) qhia lub luag haujlwm rau kev ntsuas kev sib koom ua ke. … Tsoom fwv cov koom haum lawv tus kheej tsis txwv kev sib koom ua ke, tab sis hloov lawv foob los thaiv kev sib koom ua ke, thov tsoomfwv txiav txim siab tiv thaiv kev sib koom ua ke ua txhaum ntawm ib txoj cai tiv thaiv kev ntseeg .
Kev sib cais sib cais tseem ceeb rau peb li cas?
Ib qho sib xyaw ua ke yog tsim los ntawm cov tshuaj ntshiab ntshiab Hydrocarbon, ib pawg ntawm cov tshuaj muaj tsuas yog hydrogen thiab carbon. https://en.wikipedia.org › wiki HC - Wikipedia tsuas. Tab sis lawv tau sib xyaw ua ke hauv ib qho kev sib tov.
Vim li cas kev sib cais sib cais tseem ceeb?
Ib qho sib xyaw ua ke yog tsim los ntawm cov tshuaj ntshiab ntshiab Hydrocarbon, ib pawg ntawm cov tshuaj muaj tsuas yog hydrogen thiab carbon. https://en.wikipedia.org › wiki HC - Wikipedia tsuas. Tab sis lawv tau sib xyaw ua ke hauv ib qho kev sib tov.
Puas muaj cov kab mob uas muaj cov kab sib txuas sib txuas?
Cov leeg mob plawv yog ceg thiab muaj cov kab sib txuas, uas cov leeg pob txha tsis muaj . hom xovtooj twg muaj intercalated discs? Cov hlwb yog qhov tshwj xeeb, ntawm cov leeg nqaij, vim tias lawv tau txuas rau ib leeg los ntawm kev sib cuam tshuam discs - cov qauv uas tsuas pom muaj nyob hauv cov leeg mob plawv .
