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R=(7+4*root3)^{2n}=I+f find R(1-f)

R=(7+4*root3)^{2n}=I+f
find R(1-f)
 

Grade:8

1 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
8 years ago
Hello Student,
G=(7-4*root3)^{2n}=Even integer.
I+f+G=an even integer.
f+G=1=>G=1-f
=>R(1-f)=RG=1
Thanks & Regards
Arun Kumar
Btech, IIT Delhi
Askiitians Faculty

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