oblicz wartosc wyrazenia (log5)²+(log2)²+log4*log5
(log5)²+(log2)²+log4*log5=(log5)²+(log2)²+log2²*log5=(log5)²+(log2)²+2log2*log5=
=(log2)²+2log2*log5+(log5)²=(log2+log5)²=[log(2*5)]²=[log10]²=1²=1
wzór skróconego mnożenia na kwadrat sumy
(log2)²+2log2*log5+(log5)²=(log2+log5)²
log10=1 bo 10¹=10
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(log5)²+(log2)²+log4*log5=(log5)²+(log2)²+log2²*log5=(log5)²+(log2)²+2log2*log5=
=(log2)²+2log2*log5+(log5)²=(log2+log5)²=[log(2*5)]²=[log10]²=1²=1
wzór skróconego mnożenia na kwadrat sumy
(log2)²+2log2*log5+(log5)²=(log2+log5)²
log10=1 bo 10¹=10