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Byju's Answer
Standard VIII
Physics
Static Friction
If x * 2+1 / ...
Question
If x*2+1/x*2=27,then value of x+1/x is
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Solution
We know !
(x + 1/x)² = x² + 1/x² + 2
(x + 1/x)² = 27 + 2
(x + 1/x)² = 29
taking square roots on both sides
x + 1/x = √29
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