aspenlei aspenlei

18-08-2017
Mathematics

contestada

Evaluate x + sq root(yz) when x = 3, y = 2, and z = –8.

7i
3 + 4i
3 - 16i
3 + 16i

Respuesta :

wizard123 wizard123

18-08-2017

Just remember [tex]\sqrt{-1} = i[/tex]

Sub in the numbers:
[tex]3 + \sqrt{-16} = 3+ \sqrt{16}\sqrt{-1} = 3 + 4i[/tex]

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