# Explain me the highlighted part.

The value of $\sqrt{2}\mathrm{is}1.414.$ Therefore, ${\mathrm{t}}_{1}=\frac{\mathrm{t}}{\sqrt{2}}=\frac{\mathrm{t}}{1.414}=0.707\mathrm{t}$

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The value of $\sqrt{2}\mathrm{is}1.414.$ Therefore, ${\mathrm{t}}_{1}=\frac{\mathrm{t}}{\sqrt{2}}=\frac{\mathrm{t}}{1.414}=0.707\mathrm{t}$

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