JEE Main & Advanced JEE Main Paper (Held On 10 April 2015)

  • question_answer
    The integral \[\int_{{}}^{{}}{\frac{dx}{{{(x+1)}^{\frac{3}{4}}}{{(x-2)}^{\frac{5}{4}}}}}\]is equal to: JEE Main Online Paper (Held On 10 April 2015)

    A) \[4{{\left( \frac{x-2}{x+1} \right)}^{\frac{1}{4}}}+C\]       

    B) \[-\frac{4}{3}{{\left( \frac{x+1}{x-2} \right)}^{\frac{1}{4}}}+C\]

    C)  \[4{{\left( \frac{x+1}{x-2} \right)}^{\frac{1}{4}}}+C\]      

    D) \[-\frac{4}{3}{{\left( \frac{x-2}{x+1} \right)}^{\frac{1}{4}}}+C\]

    Correct Answer: B

    Solution :

                    \[\int_{{}}^{{}}{\frac{dx}{{{\left( x+1 \right)}^{3/4}}{{\left( x-2 \right)}^{5/4}}}}\] \[\int_{{}}^{{}}{\frac{dx}{{{\left( \frac{x+1}{x-2} \right)}^{3/4}}{{\left( x-2 \right)}^{2}}}}\]put\[\frac{x+1}{x-2}=E\] \[\frac{-3}{{{\left( x-2 \right)}^{2}}}=\frac{dt}{dx}\]


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