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Question Number 38562 by shakirhsp@gmail.com last updated on 27/Jun/18

$$(\sqrt{2}+i)(1-\sqrt{2i})$$

Answered by MJS last updated on 27/Jun/18

$$(\sqrt{2}+\mathrm{i})(1-\sqrt{2\mathrm{i}})=(\sqrt{2}+\mathrm{i})(1-(1+\mathrm{i}))=$$$$=(\sqrt{2}+\mathrm{i})(-\mathrm{i})=1-\mathrm{i}\sqrt{2}$$$$(\sqrt{2}+\mathrm{i})(1-\sqrt{2}\mathrm{i})=\sqrt{2}-2\mathrm{i}+\mathrm{i}+\sqrt{2}=2\sqrt{2}-\mathrm{i}$$

Commented by shakirhsp@gmail.com last updated on 04/Jul/18

$$$$$$$$$$$$$$\mathrm{thanks}\mathrm{brother}$$$$$$

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