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ser-zykov [4K]
2 years ago
8

Trigonometric Equations

Mathematics
1 answer:
Dmitrij [34]2 years ago
7 0

Answer:

\frac{2\pi }{3};\frac{4\pi }{3}.

Step-by-step explanation:

1) cos(θ)=-0.5;

theta=±2π/3+2πn, where n∈Z;

2) if θ∈[0;360], then

\theta=\frac{2\pi }{3}; \frac{4\pi }{3}.

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