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Stiind ca a•b=21supra17 si c=51supra14,calculati (a•b)•c

Răspuns :

axbxc=(21/17)x(51/14)=(21x51)/(17x14)=(21/14)x(51/17)=(3/2)x3=9/2
axb=21\17
c=41\14
(axb)xc=
21\17x51\14=1071\238
succes