MCQ
$\int {\frac{{dx}}{{x({x^4} - 1)}}} $ =
- A$\frac{1}{4}\ln \left| {\frac{{{x^2} - 1}}{{{x^4}}}} \right| + C$
- B$\frac{1}{4}\ln \left| {1 - \frac{1}{{{x^4}}}} \right| + C$
- C$\ln \left| {\frac{{{x^4}}}{{{x^4} - 1}}} \right| + C$
- Dએકપણ નહીં.
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${b_1} = b - \frac{{b.a}}{{|a{|^2}}}a,\,{b_2} = b + \frac{{b.a}}{{|a{|^2}}}a$,${c_1} = c - \frac{{c.a}}{{|a{|^2}}}a - \frac{{c.b}}{{|b{|^2}}}b$,
${c_2} = c - \frac{{c.a}}{{|a{|^2}}}a--\frac{{c.{b_1}}}{{|{b_1}{|^2}}}{b_1}$,
${c_3} = c - \frac{{c.a}}{{|a{|^2}}}a--\frac{{c.{b_2}}}{{|{b_2}{|^2}}}{b_2}$,
${c_4} = a - \frac{{c.a}}{{|a{|^2}}}a$
તો આપેલ ગણ પૈકી . . . એ લંબ થાય.