7-sinf algebra 09.qavslarni ochish qoidalari 2+
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o’tgan mavzu: qavslarni ochish qoidasi 1)oldida “+” ishorasi turgan qavs qanday ochiladi? 2) oldida “-” ishorasi turgan qavs qanday ochiladi? 3) davriy kasr deb nimaga aytiladi? 4) davriy kasrga misollar keltiring. @dars_ishlanma_yangi 9 -8,1:9 = -9*(-3) = 27-(3+11) = 9+(-6-2,2)= -(-36):(-4)= 6,(3)+2,(5)= -5-(11,5+7,5)= charxpalak texnologiyasi asosida -4,5*(-4)= 1 2 3 4 5 6 7 8 darsning mavzusi: qavslarni ochish qoidalariga doir mashqlar yechish. yangi mavzuni bayoni: taqsimot xossasi qavslarni ochish bilan bog’liq m, n, k ratsional sonlar uchun ushbu tenglik o’rinli: 1) (m+n)*k=m*k+n*k 2) (m-n)*k=m*k-n*k m: 1) (3,5+4,2)*(-2)=3,5*(-2)+4,2*(-2)= =-7-8,4=-15,4 qavs oldiga ”+” ishorasi qo’yib qavs ichiga biror ifodani olish uchun o’sha ifodadagi hadlarni o’z ishorasi bilan yozish kerak. miso...
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