👤
Catamarius09
a fost răspuns

a) Stiind ca a•b=3/7si c=14/15,calculati a•(b•c).
b)Stiind ca a•b=21/17 si c=51/14,calculati (a•b)•c.
c)Stiind ca a•b=42/5 si c•d=35/77,calculati a•(b•c)•d.

Răspuns :

ax(bxc)=axbxc=3/7x14/15=2/5
(axb)xc=axbxc=21/17x51/14=1071/238=4,5
ax(bxc)xd=axbxcxd=42/5x35/77=42

Alte intrebari