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Permutations , combinations and binomial expansion — Statistics STD 11 Commerce — Question

Gujarat BoardEnglish MediumSTD 11 CommerceStatisticsPermutations , combinations and binomial expansion3 Marks
Question
Expand $(\frac{}{\sqrt{x}}+\sqrt{x})$
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Answer

$\frac{1}{x^3}+\frac{6}{x^2}+\frac{15}{x}+20+15 x+6 x^2+x^3$

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