document.write( "Question 925748: Please explain how to find all solutions in the interval [0, 2π) (increasing order) for the equation below. Enter DNE in any empty blank.\r
\n" ); document.write( "\n" ); document.write( "21 cot^3 x = 7 cot x\r
\n" ); document.write( "\n" ); document.write( "THANKS! \n" ); document.write( "
Algebra.Com's Answer #561729 by ewatrrr(24785)\"\" \"About 
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21 cot^3 x = 7 cot x
\n" ); document.write( "21 cot^2 x = 7
\n" ); document.write( " cot^2 x = 7/21
\n" ); document.write( "tan^2 x = 21/7
\n" ); document.write( "tan x = ± √3
\n" ); document.write( "find all solutions in the interval [0, 2π)
\n" ); document.write( "(cosx, sinx) Summary Unit Circle for Your Reference: tan x = sin x/cos x
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