document.write( "Question 831646: find sin theta if cos theta=1/2 and theta terminates in quadrant IV \n" ); document.write( "
Algebra.Com's Answer #501546 by stanbon(75887)\"\" \"About 
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find sin theta if cos theta=1/2 and theta terminates in quadrant IV
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\n" ); document.write( "In QIV x is positive and y is negative
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\n" ); document.write( "Since cos = x/r, x = 1 and r = 2
\n" ); document.write( "Then y = -sqrt[2^2-1^2] = -sqrt(5)
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\n" ); document.write( "Ans: sin(t) = y/r = -sqrt(5)/2
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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