А (4; 5) В(9; 1,2)AB = [tex]\sqrt{(9 - 4^{2}) + (1,2 - 5^{2})}[/tex] = [tex]\sqrt{25 + 14,44}[/tex] = [tex]\sqrt{39,44}[/tex]
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А (4; 5) В(9; 1,2)
AB = [tex]\sqrt{(9 - 4^{2}) + (1,2 - 5^{2})}[/tex] = [tex]\sqrt{25 + 14,44}[/tex] = [tex]\sqrt{39,44}[/tex]