11mystical
11mystical 11mystical
  • 16-01-2022
  • Mathematics
contestada

Can someone help me on this?

Can someone help me on this class=

Respuesta :

Аноним Аноним
  • 16-01-2022

Answer:

Step-by-step explanation:

We know that cosx = sin([tex]\pi[/tex] - x)

We can apply it here:

sin(55°) = cosx

cos([tex]\pi[/tex] - 55°) = cosx

Now we apply the arccos to both sides:

x = [tex]\pi[/tex] - 55° + 2k[tex]\pi[/tex] or x = -[tex]\pi[/tex] - 55° + 2k[tex]\pi[/tex]

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