web2.0calc
 
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 exponent

0
556
2
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9^-2

 Nov 21, 2015

2+0 Answers

 #1
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0

oh dear lord.. this again >_<

 Nov 21, 2015
 #2
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+5

9^-2=1/(9^2)=1/81.

 Nov 21, 2015

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