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If in the expansion of `(1/x+xtanx)^5` the ratio of `4^(th)` term to the `2^(nd)` term is `2/17pi^4`, then value of x can be

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The correct Answer is:
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`(T_(4))/(T_(2))=2/27pi^(4)impliesx^(2)tanx=1/(3sqrt(3))pi^(2)`
`implies x=(pi)/3`
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