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 what is 10/9 to the power of -2

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what is 10/9 to the power of -2

 Dec 9, 2014

Best Answer 

 #1
avatar+130511 
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We have that (a/b)-n = (b/a)n

So

(10 /9)-2  = (9 /10)2 = 81 / 100

 

 Dec 9, 2014

1+0 Answers

 #1
avatar+130511 
+5
Best Answer

We have that (a/b)-n = (b/a)n

So

(10 /9)-2  = (9 /10)2 = 81 / 100

 

CPhill Dec 9, 2014

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