Solve
2(x-3)/x(x-6) <1/x-1
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Step-by-step explanation:
x - 1/x = 6………….(1)
On cubing both sides
x^3–1/x^3- 3.x.1/x.(x-1/x) = 216
x^3 - 1/x^3 - 3×(6) = 216
x^3 - 1/x^3 = 234……….(2)
We know that:-
( x+1/x)^2 = (x - 1/x)^2 +4 =(6)^2 +4 = 40.
(x+1/x) = +/-(2.10^1/2)……………..(3)
On cubing both sides.
x^3 +1/x^3 +3.x.1/x(x+1/x) = +/-(80.10^1/2)
x^3+1/x^3 +3.(+/-2.10^1/2) =+/-(80.10^1/2)
x^3 + 1/x^3 = +/-(74.10^1/2)……………….(4)
On multiplying eq. (2) & (4)
(x^3 -1/x^3).(x^3+1/x^3) =(234).(+/-74.10^1/2).
x^6 - 1/x^6 = +/-(17316).(10)^1/2 , Answer.
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