document.write( "Question 970670: Solve for x on the interval [0,2pi]\r
\n" ); document.write( "\n" ); document.write( "cos(x-(pi/2))[3tan(x-(pi/2))]=3 \r
\n" ); document.write( "\n" ); document.write( "The answer is no solution and the answer I got was -cos(x)=1. Is this answer a know solution.
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Algebra.Com's Answer #593274 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Let's substitute \"u=x-pi%2F2\"
\n" ); document.write( "\"cos%28u%29%2A3tan%28u%29=3\"
\n" ); document.write( "\"cos%28u%29%2A%28sin%28u%29%2Fcos%28u%29%29=1\"
\n" ); document.write( "\"sin%28u%29=1\"
\n" ); document.write( "\"u=0\"
\n" ); document.write( "\"x-pi%2F2=0\"
\n" ); document.write( "\"x=pi%2F2\"
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