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if x^2+x+1=0 then find the value of summation (r=1 to r=27)[(x^r+1/x^r)]^2

if x^2+x+1=0 then find the value of summation (r=1 to r=27)[(x^r+1/x^r)]^2

Grade:12

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
3 years ago
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