document.write( "Question 752472: What value of x is f (x)=sin(x)/cos (x) undefined? \n" ); document.write( "
Algebra.Com's Answer #457746 by stanbon(75887)\"\" \"About 
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What value of x is f (x)=sin(x)/cos (x) undefined?
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\n" ); document.write( "f(x) is undefined when the denominator = 0
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\n" ); document.write( "Solve: cos(x) = 0
\n" ); document.write( "x = (90 +- 180k) degrees); k = 0,1,2,3.....
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\n" ); document.write( "f(x) is undefined for those values of \"x\":
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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