document.write( "Question 1044657: solve for x on the interval [0,2pi)
\n" ); document.write( "3cosx-1=2
\n" ); document.write( "first i isolated cosx and got cosx=1
\n" ); document.write( "i did cos^-1(1) to find x and got 0 but i am being told that 0 is not the correct answer. help me please? \n" ); document.write( "

Algebra.Com's Answer #659993 by ikleyn(52788) $\"\"$ $\"About$

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\n" ); document.write( "solve for x on the interval [0,2pi)
\n" ); document.write( "3cosx-1=2
\n" ); document.write( "first i isolated cosx and got cosx=1
\n" ); document.write( "i did cos^-1(1) to find x and got 0 but i am being told that 0 is not the correct answer. help me please?
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document.write( "3cos(x) - 1 = 2  --->\r\n" );
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document.write( "3cos(x) = 2 + 1  --->  3cos(x) = 3  --->  cos(x) = 1  --->  x = 0 (zero).\r\n" );
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document.write( "The only solution is x = 0 (zero).\r\n" );
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document.write( "There is no other solutions.\r\n" );
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document.write( "0 (zero) IS CORRECT ANSWER.\r\n" );
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