Sinx is not one -one function then why arcsinx exists. [For existence of inverse function the function must be bijective. But in this case ,even if sinx is not one one then also arcsinx exists]

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter67: Analysis Of Trigonometric Functions
Section: Chapter Questions
Problem 18A: For each exercise, functions of two angles are given. Which of the functions of the two angles is...
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Sinx is not one -one function then why arcsinx exists. [For existence of inverse function the function must be bijective. But in this case ,even if sinx is not one one then also arcsinx exists]

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