Question

If x-1/x=2,find the value of x^3-1/x^3​

Answer 1

x+1/x=2

Cubing both sides

x^3+1/x^3+3.x.1/x(x+1/x) = 8

x^3+1/x^3 +3.(x+1/x) =8

x^3+ 1/x^3 + 3×2 = 8

x^3+1/x^3 = 8 -6 = 2 , Answer.

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Answer 2

Step-by-step explanation:

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