matematykaszkolna.pl
suma Karo: (√3 + √2 +2 )2
7 maj 17:56
irena_1: (√3+√2+2)2=3+2+4+2√6+4√3+4√2=9+2√6+4√3+4√2 (a+b+c)2=a2+b2+c2+2ab+2ac+2bc
7 maj 17:58
irena_1: (√3+√2+2)2=3+2+4+2√6+4√3+4√2=9+2√6+4√3+4√2 (a+b+c)2=a2+b2+c2+2ab+2ac+2bc
7 maj 17:58