Find the Value Using the Unit Circle sin(1/2)
Problem
Solution
Identify the input of the function. The expression
sin(1/2) refers to the sine of an angle of1/2 radians.Distinguish between degrees and radians. Since there is no degree symbol (
, the value 1/2 is treated as a real number (radians).Locate the value on the unit circle. An angle of
1/2 radian is approximately28.65 Unlike standard unit circle values likeπ/6 orπ/4 this does not result in a simple radical or rational number.Evaluate using a calculator or Taylor series expansion if a decimal approximation is required. The sine function for a specific radian value represents the
y coordinate of the point on the unit circle at that angle.
Final Answer
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