I don't even understand the wording of this. Also arcSINx?

Denote by y=arcsinx,-1< or =x< or =1, the inverse of y=sinx with x between -pi/2 and pi/2. Show that

d/dx arcsinx = 1/sqrt(1-x^2)with x between -1 and 1

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- June 25th 2008, 01:49 PMSportfreundeKeaneKentInverse of sinx with arcsinx?
I don't even understand the wording of this. Also arcSINx?

Denote by y=arcsinx,**-1**< or =**x**< or =**1**, the inverse of y=sinx with x between -pi/2 and pi/2. Show that

**d/dx arcsinx = 1/sqrt(1-x^2)**with x between -1 and 1 - June 25th 2008, 01:59 PMMoo