Ukubunjwa, Isayensi
Yintoni na amanani nenengqiqo? Yintoni ngakumbi?
Yintoni na amanani nenengqiqo? abafundi Senior nabafundi amakhono zemathematika kusenokwenzeka ukuba uphendule ngokulula lo mbuzo. Kodwa abo bathi msebenzi na kude kulo, kuya kuba nzima. Ntoni ngempela?
Ubunjalo nesikhundla
Phantsi amanani enengqondo ithetha ezo angamelwa njenge amaqhezu. HIV, elibi, kwaye zero nazo zibandakanyiwe kule iseti. Elingezantsi iqhezu kule meko kufuneka yinombolo, kunye nenani elingaphezulu - zimele kweqanda.
Le isethi yemathematika ibizwa ngokuba Q yaye ubizwa ngokuba 'entsimini amanani enengqondo. " Ziquka yonke nezendalo, zibonakaliswe njenge Z kunye N. Iseti efanayo kakhulu Q zibandakanyiwe R. iseti Kuyinto le ncwadi zimele babizwa ngokuba amanani okanye ngokwenene.
umbono
Njengoko sele kukhankanyiwe, amanani kakhulu- - awumiselayo, equka zonke elipheleleyo kunye nemilinganiselo iqhezu. Baya zinganikezelwa ngeendlela ezahlukeneyo. Okokuqala, ngokohlobo amaqhekeza zesiqhelo: 5/7, 1/5, 11/15, njl Kakade ke, lo integers kwakhona ukuba ibhalwe ngendlela efanayo: 6/2, 15/5, 0/1, - .. 10/2, njl Okwesibini, olunye uhlobo ntetho - a wokugqibela inxalenye ezisikelwe iqhezu: .... 0,01, -15,001006, njl lo mhlawumbi enye ntlobo zixhaphakileyo.
Kodwa kukho sesithathu - iqhekeza ngamaxesha athile. Olu hlobo akuxhaphakanga kakhulu, kodwa kusetyenziswa. Umzekelo, iqhezu 10/3 angabhalwa 3,33333 ... okanye 3, (3). Iimbono ezahlukeneyo ziya kuthathelwa ingqalelo amanani efanayo. Njengoko iya kuthunyelwa, kwaye ilingana omnye ezinye iincindi ezifana 3/5 no 6/10. Kubonakala ukuba kuyacaca ukuba inani nenengqiqo. Kodwa kutheni eli gama lisetyenziswa ukubhekisela kubo?
Imvelaphi yegama
Igama elithi "olwamkelweyo" ngolwimi Russian mihla ngokubanzi uthwala intsingiselo eyahlukileyo kancinane. Kunoko, "ingqiqo", "ngabom". Kodwa amagama zemathematika kufutshane lokoqobo lo gama ebolekiweyo. I "Umlinganiselo" in Latin - i "isimo", "kuluhlu" okanye "division." Ngenxa yoko, igama uyibonakalisa kakuhle oko kusengqiqweni. Noko ke, le ntsingiselo yesibini
balawula
Ekucombululeni iingxaki zezibalo, sijongene rhoqo ngamanani obengo, engazi ngokwabo. Kwaye kukho inani iipropati umdla. bonke balandela kwinkcazelo uthotho lokwenzekayo mhlawumbi.
Okokuqala, amanani kakhulu- babe neentlobano impahla ngokomyalelo. Oku kuthetha ukuba phakathi amanani amabini ingaba ulwalamano kuphela - bona mhlawumbi ilingana omnye komnye, okanye elinye ngaphezulu okanye ngaphantsi kwelinye. Okt.:
okanye = b; okanye> b, okanye
Ngapha koko, le impahla ratio transitivity ngolu hlobo lulandelayo. Oko kukuthi, ukuba mkhulu b, b ngaphezu c, ngoko a mkhulu c. Xa ulwimi lwemathematika imi ngolu hlobo lulandelayo:
(A> b) ^ (b > c) => (a> c).
Okwesibini, kukho imisebenzi lokubala eliguqukayo ngamanani obengo, oko kukuthi, ukudibanisa, ukuthabatha, iyantlukwano, kwaye, kakade, ngokuphindaphinda. Xa inkqubo yotshintsho kwakhona ungakhetha iqela iipropati.
- a + b = b + a (iindawo ngokwemiqathango utshintsho commutativity);
- 0 + a = a + 0;
- (A + b) + c = a + (b + c) ( associativity);
- a + (ehla-) = 0;
- ab = ba;
- (Ab) c = a (BC ) ( Distributivity);
- 1 = kugawulwa 1 xua = a;
- kugawulwa (1 / a) = 1 (apho a ayikho 0);
- (A + b) c = ac + ab;
- (A> b) ^ (c > 0) => (ac> BC) .
Xa kuziwa eziqhelekileyo, hayi wokugqibela, amaqhezu kunye integers, izenzo kunye nabo kunokubangela iingxaki ezithile. Umzekelo, ukudibanisa nokuthabatha zinokubakho kuphela anedinomineyitha alinganayo. Ukuba ezahlukeneyo ekuqaleni, kufuneka ibe ukufumana eqhelekileyo, usebenzisa uphinda-phindo zonke amaqhezu kwinani elithile. Thelekisa kwakhona rhoqo kunokwenzeka kuphela phantsi kwale meko.
Ukwahlulwa kunye ukuphinda-amaqhezu eziveliswa ngokungqinelana nemithetho kakuhle elula. Ukwehla kwi zifana ayikho imfuneko. Ngokwahlukeneyo, phinda amanani kunye idominetha, ngoxa inkqubo ukuphunyezwa iqhezu izenzo kunokwenzeka ukuze unciphise kwaye lula.
Njengoko ulwahlulo, ngoko uyafana yokuqala umahluko okungephi. Kuba shot yesibini kufuneka afumane inguqu, oko kukuthi,
Okokugqibela, enye impahla yosapho ngamanani obengo, ebizwa saziwe ka kaArchimedes. igama "umgaqo" ufumaneka kule ncwadi nazo. Kuba sisebenza ukuba iseti yonke amanani yokwenene, kodwa kuyo yonke indawo. Ngoko ke, lo mgaqo awusebenzi iiseti ezithile kwemisebenzi ethile enengqondo. Enyanisweni, lo saziwe kuthetha ukuba xa kukho amaxabiso amabini kunye b, ungasoloko uthathe isixa ocacileyo, b ukuba bebodlula.
enkulu isicelo
Ngoko ke, abo bafunda okanye ukhumbule, ukuba inani obengo, kucacile ukuba asetyenziswe yonke: ngo accounting, ezoqoqosho, amanani, physics, chemistry kunye nezinye izifundo zesayensi. Ngokuqhelekileyo, kukho kwakhona indawo kubo kwimathematika. Akusoloko esazi ukuba sisebenzisana nabo, siye rhoqo sebenzisa amanani enengqondo. Nkqu nabantwana abancinane zifunda ukubala izinto, ukusika lezabelo apile okanye ngokuzalisa amanye amanyathelo alula, abajongene nabo. Bona ngokoqobo asirhawule. Kodwa ukuba imisebenzi ethile ukuba azonelanga, ingakumbi, umzekelo theorem kaPythagoras, sinako ukuqonda imfuneko yokuqalisa ingqiqo yamanani ezingenangqondo.
Similar articles
Trending Now