1.) -435°
= -435° + (360°)(2)
= -435° + 720
= 285°
2.) 1640°
= 1640° - 360(4)
= 1640° - 1440°
= 200°
3.) 442°
= 442° - 360°
= 82°
4.) -19π/12 rad
= -19π/12 rad + 2π rad
= 5π/12 rad
5.) -35π/18 rad
= -35π/18 rad + 2π rad
= π/18 rad
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Answers & Comments
Find and solve for a coterminal angle between 0° and 360° (if in degrees) or 0 rad to 2π rad (if in radians)
1.) -435°
= -435° + (360°)(2)
= -435° + 720
= 285°
2.) 1640°
= 1640° - 360(4)
= 1640° - 1440°
= 200°
3.) 442°
= 442° - 360°
= 82°
4.) -19π/12 rad
= -19π/12 rad + 2π rad
= 5π/12 rad
5.) -35π/18 rad
= -35π/18 rad + 2π rad
= π/18 rad
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