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Question Number 103159 by 281981 last updated on 13/Jul/20

$$\mathbf{how}\mathbf{do}\mathbf{you}\mathbf{represent}\mathbf{the}\mathbf{distance}\mathbf{between}$$$$\mathbf{M}and\mathit{N}\mathrm{is}7$$

Commented by 9027201563 last updated on 13/Jul/20

$$\mathrm{from}\mathrm{the}\mathrm{distance}\mathrm{formuar}$$$$\mathrm{distance}=\sqrt{{({\mathrm{x}}_2-{\mathrm{x}}_1)}^2+{({\mathrm{y}}_2-{\mathrm{y}}_1)}^2}$$$$\mathrm{so}$$$$7=\sqrt{{(\mathrm{M}-0)}^2+{(\mathrm{N}-0)}^2}$$$$\therefore 7=\sqrt{{\mathrm{M}}^2+{\mathrm{N}}^2}$$

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