document.write( "Question 94167This question is from textbook algebra and trigonometry
\n" ); document.write( ": Show by counterexample that (x + y)^-2 and x^-2 + y ^-2 are not equivalent. \n" ); document.write( "

Algebra.Com's Answer #68727 by edjones(8007) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let x=4 y=9
\n" ); document.write( " $\"%282%2B3%29%5E-2=5%5E-2=1%2F25\"$
\n" ); document.write( " $\"2%5E-2=1%2F4\"$ $\"3%5E-2=1%2F9\"$ $\"1%2F4%2B1%2F9=%289%2B4%29%2F36=13%2F36\"$
\n" ); document.write( " $\"1%2F25%3C%3E13%2F36\"$
\n" ); document.write( "EdJones \n" ); document.write( "

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