document.write( "Question 999692: Show that |(-1)^(n+1) - (-1)^(n+2)| = 2 \n" ); document.write( "
Algebra.Com's Answer #617282 by Alan3354(69443)\"\" \"About 
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Show that |(-1)^(n+1) - (-1)^(n+2)| = 2
\n" ); document.write( "------
\n" ); document.write( "= |(-1)^n*((-1) - (-1)^2|
\n" ); document.write( "= |(-1)^n*(-1 - 1)|
\n" ); document.write( "= |(-1)^n*(-2)|
\n" ); document.write( "= 2
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