answer any one question 2. prove that in...

answer any one question 2. prove that `int_1^3 dx/(x^2(x+1))=2/3+ log (2/3)`

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UNITED BOOK HOUSE-HIGHER SECONDARY QUESTION 2019-EXERCISE

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answer the foll. Questions 2. evaluate : int sqrt(1+sec x dx).
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or, evaluate : int dx/((x-1)+ sqrt(x^2-1)
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