document.write( "Question 316565: For which of the following values of x is cos x/sin x not defined?
\n" ); document.write( "A) Pi/2 B) Pi/3 C) Pi/4 D) Pi/6 E) 0 ???
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Algebra.Com's Answer #226462 by CharlesG2(834)\"\" \"About 
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For which of the following values of x is cos x/sin x not defined?
\n" ); document.write( "A) Pi/2 B) Pi/3 C) Pi/4 D) Pi/6 E) 0 ???\r
\n" ); document.write( "\n" ); document.write( "cos x = adj/hyp
\n" ); document.write( "sin x = opp/hyp
\n" ); document.write( "tan x = opp/adj
\n" ); document.write( "(cos x)/(sin x) = adj/hyp * hyp/opp = adj/opp = 1/(tan x)
\n" ); document.write( "(cos x)/(sin x) is not defined if tan x = 0\r
\n" ); document.write( "\n" ); document.write( "tan x = 0, solve for x, use radians
\n" ); document.write( "arctan(0) = x, x = 0\r
\n" ); document.write( "\n" ); document.write( "answer is E) 0\r
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