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jolli1 [7]
3 years ago
9

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

Mathematics
1 answer:
bija089 [108]3 years ago
3 0

Answer:

x = 0°

Step-by-step explanation:

\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}} \\

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