document.write( "Question 889370: I posted earlier:\r
\n" ); document.write( "\n" ); document.write( " In proving a trig identity, why is working only one side important?
\n" ); document.write( " Can you provide an example where working both sides gives a different result than working on only one side?\r
\n" ); document.write( "\n" ); document.write( "I've searched online and have not found any reason to work on only one side of the equation.\r
\n" ); document.write( "\n" ); document.write( "I saw some comments that you \"should\" do that, but no reason for it.\r
\n" ); document.write( "\n" ); document.write( "I have done several identity proofs and I cannot see any difference. One of the basic tenets of algebra is that if you do the same operation to both sides, it's still equal.\r
\n" ); document.write( "\n" ); document.write( "I suspect it's just some superstition, like stepping on a crack.\r
\n" ); document.write( "\n" ); document.write( "If I lose points in class for doing both sides, I'll argue it there. \n" ); document.write( "

Algebra.Com's Answer #538126 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
gibberish from josg...
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\n" ); document.write( "Can anyone give an example where working only 1 side versus both makes a difference?
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\n" ); document.write( "I can't.
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