if X + 1 by X equal to 3 then find the value of x cube + 1 by x cube
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x + 1/x = 3 ------(1)
On cubing both sides, we get
x^3 + 1/x3 + 3(x)(1/x)(x + 1/x) = 27
=> x^3 + 1/x^3 + 3(3) = 27
=> x^3 + 1/x^3 + 9 = 27
=> x^3 + 1/x^3 = 18
On cubing both sides, we get
x^3 + 1/x3 + 3(x)(1/x)(x + 1/x) = 27
=> x^3 + 1/x^3 + 3(3) = 27
=> x^3 + 1/x^3 + 9 = 27
=> x^3 + 1/x^3 = 18
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wrong question
correct question is x+1/x=2
find x^2+1/x square
correct question is x+1/x=2
find x^2+1/x square
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