\"\"

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The definite integral is \"\", \"\".

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Binomial series:

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If \"\" is any real number and \"\", then \"\".

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\"\"

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\"\"

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\"\"

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Apply integral on each side on \"\".

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\"\"

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\"\"

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\"\"

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\"\"

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\"\"

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Calculate the terms upto \"\".

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\"\"

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Here third term is \"\".

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Therefore, calculate the sum upto two terms.

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\"\"

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\"\".

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\"\"

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\"\".