ek6307 ek6307
  • 02-11-2019
  • Mathematics
contestada

PLEASE HELP I NEED HELPPP.

PLEASE HELP I NEED HELPPP class=

Respuesta :

jimrgrant1 jimrgrant1
  • 02-11-2019

Answer:

A

Step-by-step explanation:

Using the rule of radicals

[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex] and

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

Given

[tex]\sqrt{-75}[/tex]

= [tex]\sqrt{25(3)(-1)}[/tex]

= [tex]\sqrt{25}[/tex] × [tex]\sqrt{3}[/tex] × [tex]\sqrt{-1}[/tex]

= 5 × [tex]\sqrt{3}[/tex] × i

= 5i[tex]\sqrt{3}[/tex] → A

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