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

 The coefficients of xn in the expansion of (1 + x)2n and (1 + x)2n ~1 are in the ratio
(a) 1 : 2                    
(b) 1 : 3                   
(c) 3 : 1
(d) 2:1 

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 The coefficients of xn in the expansion of (1 + x)2n and (1 + x)2n ~1 are in the ratio

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