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in Class XI Maths by (-2,838 points)

If the middle term of (1/x + x sin x)10 is equal to 7.7/8, then the value of x is 
(a) 2nπ + π/6 
(b) nπ + π/6
(c) nπ + (-1)n π/6
(d) nπ + (-1)n π/3   

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by (-1,017 points)

If the middle term of (1/x + x sin x)10 is equal to 7.7/8, then the value of x is 

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