Q&A #4069

Teachers' Lounge Discussion: Arc sin and Arc cos pictures and domain

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From: Loyd

To: Teacher2Teacher Public Discussion
Date: 2002092513:01:16
Subject: Re: Arc SIN

To my knowledge just means arc which is part of a circle. Arc Sine means "Angle whose sine is." Thus in a right triangle, if the arc sin = 1/2 then the angle is 30 degrees because the sine of 30 degrees is 1/2.

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