nolen69
nolen69 nolen69
  • 28-01-2022
  • Mathematics
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Very confused on this, could someone please help? I’m currently in pre calculus if that helps!

Very confused on this could someone please help Im currently in pre calculus if that helps class=

Respuesta :

Аноним Аноним
  • 28-01-2022

  • tan x<0 lies in second quadrant

sec x =3/4

  • cosX=1/secx=4/3

[tex]\\ \tt\Rrightarrow sin x=\sqrt{1-(4/3)^2}=\sqrt{1-16/9}=\sqrt{-7/9}[/tex]=√7/3i[/tex]

Now

  • tanx=(√7/3i)(4/3)=√7/4i
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