document.write( "Question 46957: Doctor Frankenstein has gathered enough bits and pieces for 2^-1+2^-2 of his creature-to-be. Write the fraction that represents the amount of his creature that must still be obtained. \n" ); document.write( "
Algebra.Com's Answer #31109 by aaaaaaaa(138)\"\" \"About 
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We want to solve
\n" ); document.write( "\"2%5E-1%2B2%5E-2\"\r
\n" ); document.write( "\n" ); document.write( "A bit of theory first: Negative exponents are evaluated with the following rule:\r
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\n" ); document.write( "\n" ); document.write( "(a/b)^-c = (b/a)^c\r
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\n" ); document.write( "\n" ); document.write( "I hope it makes sense. Therefore:\r
\n" ); document.write( "\n" ); document.write( "\"%282%2F1%29%5E-1+=+%281%2F2%29%5E1+=+1%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"%282%2F1%29%5E-2+=+%281%2F2%29%5E2+=+1%5E2%2F2%5E2+=+1%2F4\"\r
\n" ); document.write( "\n" ); document.write( "Since 1/2 + 1/4 is equal to 3/4, he still has 1/4 to go.\r
\n" ); document.write( "\n" ); document.write( "Funny thing - I just read Frankenstein!
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