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Express the simplified expression in radicals:

 

(sqrt(5))^-2 

 

Thank you!!! smiley

 Aug 19, 2017
 #1
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( √5) -2    is the same as    1  / (√5)    =   1 / [ √5 * √5 ]   =   1  / 5

 

 

 

 

cool cool cool

 Aug 19, 2017

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