Kev hloov pauv
- Kauj Ruam 1: daws ib qho kev sib npaug rau ib qho sib txawv.
- Kauj Ruam 2: Hloov qhov no hauv lwm qhov sib npaug kom tau txais ib qho kev sib npaug ntawm ib qho sib txawv.
- Kauj Ruam 3: daws nws rau qhov sib txawv.
- Kauj Ruam 4: Hloov nws hauv ib qho kev sib npaug kom tau tus nqi ntawm lwm qhov sib txawv.
Txoj cai golden rau kev daws qhov sib npaug yog dab tsi?
Ua rau ib sab ntawm qhov sib npaug, koj ua dab tsi rau lwm tus!
Yog tias peb muab qee yam rau, lossis muab qee yam tawm ntawm ib sab, qhov ntsuas (lossis qhov sib npaug) tsis sib npaug. Thaum daws cov lej sib npaug, peb yuav tsum ib txwm khaws ' nplai' (lossis qhov sib npaug) sib npaug kom ob sab sib npaug
4 kauj ruam los daws qhov sib npaug yog dab tsi?
Peb muaj 4 txoj hauv kev los daws qhov sib npaug ib kauj ruam: Ntxiv, rho tawm, sib faib thiab faibYog tias peb ntxiv tib tus lej rau ob sab ntawm qhov sib npaug, ob sab yuav nyob twj ywm sib npaug. Yog tias peb rho tus lej tib yam los ntawm ob sab ntawm qhov sib npaug, ob sab yuav nyob sib npaug.
Koj daws 3 qhov sib npaug nrog 2 qhov sib txawv li cas?
Xaiv ob khub ntawm qhov sib npaug ntawm qhov system. Tshem tawm qhov sib txawv ntawm txhua tus khub siv Txoj Kev Ntxiv / rho tawm Kho qhov system ntawm ob qhov sib npaug tshiab siv txoj kev Ntxiv / rho tawm. Hloov cov kev daws rov qab rau hauv ib qho ntawm qhov sib npaug qub thiab daws rau qhov sib txawv thib peb.
Yuav ua li cas yog 2 qhov sib txawv sib txawv?
Yog a, b, thiab r yog tus lej tiag (thiab yog tias a thiab b tsis yog ob qho tib si rau 0) ces ax +by=ryog hu ua kab sib npaug hauv ob qhov sib txawv. (Qhov "ob qhov sib txawv" yog x thiab y.) Cov lej a thiab b yog hu ua coefficients ntawm qhov sib npaug ax + by=r. … Wb saib qhov sib npaug 2x - 3y=7.
