tomatoshelby tomatoshelby
  • 12-04-2020
  • Mathematics
contestada

Solve the following trigonometric question:
cos x=3 cos x-2

Respuesta :

Hrishii
Hrishii Hrishii
  • 12-04-2020

Answer:

x = 0°

Step-by-step explanation:

[tex] \cos x = 3 \cos x - 2 \\ 2 = 3 \cos x - \cos x \\ 2 = 2\cos x \\ \cos x = \frac{2}{2} \\ \cos x =1 \\ \cos x =\cos 0 \degree \\ \huge \red{ \boxed{x = 0 \degree}} \\ [/tex]

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