2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ob tug kab sib npaugyog tias lawv muaj qhov sib npaug. Cov kab y=2x + 1 thiab y=2x + 3 yog qhov sib npaug, vim tias ob qho tib si muaj gradient ntawm 2. Ob kab yog perpendicular yog tias ib qho nyob ntawm kaum sab xis mus rau lwm qhov - hauv lwm lo lus, yog tias ob kab hla thiab lub kaum sab xis ntawm cov kab yog 90 degrees.
Yuav ua li cas yog tias ob kab muaj tib qhov gradient?
Ib yam lus, nqes hav ntawm kab sib npaug sib npaug. Nco ntsoov tias ob kab yog qhov sib npaug yog tias lawv txoj kab nqes sib npaug thiab lawv muaj qhov sib txawv y-intercepts. Nyob rau hauv lwm yam lus, perpendicular slopes yog tsis zoo reciprocals ntawm ib leeg.
gradient zoo li cas?
Qhov no yog vim gradient thiab slope txhais tau tib yam. Qhov no nyob ntawm seb koj nyob qhov twg hauv lub ntiaj teb no. Gradient: (Mathematics) Qhov degree ntawm steepness ntawm daim duab ntawm txhua qhov chaw. Slope: Qhov gradient ntawm daim duab ntawm txhua qhov taw tes.
Txoj haujlwm sib txawv puas muaj qhov sib txawv?
Yog ob txoj haujlwm muaj qhov sib npaug, ces lawv yog qhov ua haujlwm tib yam.
txhais tau tias nrhiav qhov gradient?
Hauv kev ua lej, qhov gradient yog ntsuas qhov steepness ntawm txoj kab ncaj. Ib qho gradient tuaj yeem nce toj hauv kev taw qhia (los ntawm sab laug mus rau sab xis) lossis nqes toj hauv kev taw qhia (ntawm sab xis mus rau sab laug). Cov qhab nia tuaj yeem yog qhov zoo lossis qhov tsis zoo thiab tsis tas yuav yog tus lej tag nrho.
Pom zoo:
Puas muaj leej twg muaj sia nyob ntawm tib neeg kev sib kis?
Lub Kaum Ob Hlis 2010, kev tuag of Michael Faherty, tus txiv neej muaj hnub nyoog 76 xyoo hauv County Galway, Ireland, tau sau tseg tias "kev sib tua tshwm sim" los ntawm tus kws kho mob. Yuav ua li cas thiaj li tshwm sim tshwm sim?
Qhov gradient steepest nyob qhov twg?
Ib lo lus, qhov gradient ∇f(a) cov ntsiab lus nyob rau hauv cov kev taw qhia ntawm qhov loj tshaj qhov nce ntawm f, uas yog, cov kev taw qhia ntawm steepest ascent. Tau kawg, qhov kev taw qhia ntawm oppo-site, −∇f(a), yog kev taw qhia ntawm qhov siab tshaj plaws.
Puas yog cov tib neeg ntawm ib hom niaj hnub no txawv dua li cov tib neeg ntawm tib hom?
Puas yog cov tib neeg ntawm ib hom niaj hnub no zoo li txawv dua li cov tib neeg ntawm tib hom tau ntau tiam dhau los? … Yog, txhua tus neeg tuaj yeem hloov pauv me ntsis thiab dhau qhov kev hloov pauv rau lawv cov xeeb ntxwv. Puas muaj qhov sib txawv ntawm cov tib neeg ntawm tib hom?
Vim li cas qhov tseem ceeb ntawm qhov muaj zog thiab qhov tsis muaj zog yog qhov tseem ceeb?
Nws yog ib qho tseem ceeb rau qhov tseem ceeb ntawm qhov ua tau zoo thiab qhov tsis muaj zog vim qhov no pab lub tuam txhab txiav txim siab txog thaj chaw uas lawv yuav tsum tau txhim kho ntxiv rau thaj chaw uas lawv ua tau zoo hauv. Vim li cas lub zog thiab qhov tsis muaj zog tseem ceeb?
Puas yog qhov muaj zog thiab qhov tsis muaj zog ntawm marxism?
Ib lub zog ntawm Marxism yog nws txoj kev xav. Nws ua haujlwm kom nthuav tawm kev tsis ncaj ncees thiab fervently ntseeg tias txhua tus neeg yuav tsum tau kho nrog kev sib luag thiab meej mom. … Ntawm qhov tsis zoo, txawm li cas los xij, ib qho qhov tsis muaj zog ntawm Marxism yog nws ua rau lub xeev tyranny.
