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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.

Examples of Arcsine

img
or img
This means that the angle 300 has sine equal to img.

Video Examples: Arcsine

Solved Example on Arcsine

Ques: arcsin(0.1218) = ?

Choices:

A. 120 
B. 830 
C. 780
D. 70
Correct Answer: D

Solution:

Step 1: arcsin(0.1218) = 70, rounded to the nearest degree. [Use calculator in degree mode.]