Question

сравните значения выражений A и B,если A=0(15)
B=√0,17²-0,08²

Answer 1

$B= sqrt{0.17^2-0.08^2} =sqrt{(0.17-0.08)(0.17+0.08)} = sqrt{0.09cdot0.25}=\ = sqrt{0.3^2cdot0.5^2}=0.3cdot0.5=0.15\ A=0.(15)=0.151515... Rightarrow A textgreater B$