juliettesantiago01 juliettesantiago01
  • 03-01-2018
  • Mathematics
contestada

which is a value of x if sin 60°=cos(x+10)°

Respuesta :

habeebmusa24 habeebmusa24
  • 08-01-2018
Solution
cos (90-60)=cos (x+10)
⇒30=x+10
x=30-10
x=20.
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