find the circumference of the circle. radius = 3.5 inches and p = 3.14. a.21.98 inches b.10.99 inches c.6.64 inches d.134.63 inc
1 answer:
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Answer:
θ = {(4/3 +2k)π, (5/3 +2k)π}
Step-by-step explanation:
From your knowledge of trig functions, you know that sin(60°) = sin(π/3) = (√3)/2. So, the angles of interest are in the 3rd- and 4th-quadrant and will have π/3 as their reference angle.
θ = 4/3π +2kπ, and 5/3π +2kπ
