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Arc Length and Radians. is measured in radians. Small Angle Approximation. Small-angle approximation is a useful simplification of the laws of trigonometry which is only approximately true for finite angles. FOR. EXAMPLE.
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Arc Length and Radians is measured in radians
Small Angle Approximation Small-angle approximation is a useful simplification of the laws of trigonometry which is only approximately true for finite angles. FOR EXAMPLE