ncfrock ncfrock

08-06-2020
Mathematics

contestada

What is the sum o[tex]\sqrt{-} 2 and \sqrt{} -18[/tex]

Respuesta :

devishri1977 devishri1977

10-06-2020

Answer:

Step-by-step explanation:

[tex]\sqrt{-2}=\sqrt{2}i\\\\\sqrt{-18}=\sqrt{2*3*3}i=3\sqrt{2}i\\\\\sqrt{-2}+\sqrt{-18}= \sqrt{2}i+3\sqrt{2}i\\ =(1+3)\sqrt{2}i\\\\=4\sqrt{2}i[/tex]

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