sdlinsey Posts: 12, Reputation: 1 New Member #1 Apr 26, 2009, 04:18 PM
Use a right triangle to write the expression as an algebraic expression.
sin(sin-1( x/2))
 Perito Posts: 3,139, Reputation: 150 Ultra Member #2 Apr 26, 2009, 05:21 PM

I don't quite get the problem.

$sin (sin^{-1}(\frac {x}{2})) = \frac x2$

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