C=2πr
To solve for r, divide both sides by 2π
r = C / 2π
Answer:
θ = π n - 20 for n element Z
Step-by-step explanation:
Solve for θ:
sin(θ + 20) = 0
Take the inverse sine of both sides:
θ + 20 = π n for n element Z
Subtract 20 from both sides:
Answer: θ = π n - 20 for n element Z