CONCEPT PREVIEW Match each trigonometric function value or angle in Column I with its appropriate approximation in Column II.
Column I: 1.
sin⁻¹ 0.30
Column II:
A. 88.09084757°
B. 63.25631605°
C. 1.909152433°
D. 17.45760312°
E. 0.2867453858
F. 1.962610506
G. 14.47751219°
H. 1.015426612
I. 1.051462224
J. 0.9925461516

검증된 단계별 안내

Identify the inverse sine function given: \(\sin^{-1} 0.30\). Recall that \(\sin^{-1} x\) gives the angle whose sine is \(x\), so this corresponds to an angle in degrees or radians.

Calculate or recall the approximate value of \(\sin^{-1} 0.30\) in degrees. This will help match it with one of the angle values in Column II (values with a degree symbol).

Recognize that the other values in Column II without degree symbols are likely radian measures or decimal approximations of trigonometric function values.

Match the angle found from \(\sin^{-1} 0.30\) with the closest angle approximation in Column II, and then use the process of elimination to pair the remaining values in Column I with their corresponding approximations in Column II.

Remember that inverse trigonometric functions return angles, while trigonometric function values are decimals between -1 and 1, so use this knowledge to distinguish between angles and function values when matching.

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주요 개념

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Inverse Trigonometric Functions

Inverse trigonometric functions, such as sin⁻¹ (arcsin), return the angle whose trigonometric ratio equals a given value. For example, sin⁻¹(0.30) gives the angle whose sine is 0.30. Understanding their domain and range is essential for correctly interpreting and matching values to angles.

Angle Measurement Units (Degrees and Radians)

Angles can be measured in degrees or radians, two common units in trigonometry. Degrees divide a circle into 360 parts, while radians relate the angle to the radius of a circle. Recognizing and converting between these units is crucial when matching angle approximations with function values.

Approximation and Numerical Values of Trigonometric Functions

Trigonometric function values and their inverses often result in decimal approximations. Being able to interpret and compare these numerical values, whether they represent angles or function outputs, helps in correctly pairing values from different columns in matching exercises.