Question

If x + 1/x = 3 then, x⁷+1/x⁷=?
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Answer 1

Answer:

x+1/x=3

x=3-1/x

x=3x-1/x

x^2=3x-1

x^7 +1 /x^7

x^2=3x-1

(x^2)^5+1/(x^2)^5

(3x-1)^10 +1/(3x-1)^5