Question

If x= (7-√45)/2 then find the value of x^3+1/x^3

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

(x+1/x)^3 - 3x.1/x( x + 1/x) = x^3 + 1/x^3

x + 1/x = 7

So

343 - 21

322