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Math Dictionary
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  Sine     Inverse function     Function     Arc  

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Arcsine
Definition of Arcsine

  • Arcsine is the inverse Function of sine. It is also written as arcsin or sin- 1. If y = sin x, then x = arcsin y.

Example of Arcsine


  • or

    This means that the Angle 30° has sine equal to .

     

Solved Example on Arcsine

arcsin(0.1218) = ?
Choices:
A. 12°
B. 83°
C. 78°
D. 7°
Correct Answer: D
Solution:
Step 1:   arcsin(0.1218) = 7°, rounded to the nearest degree.      [Use Calculator in Degree mode.]

Related Terms for Arcsine

Additional Links for Arcsine


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