## Part - 13 Lecture - 4 Chapter 7 Integrals

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“Just when the caterpillar thought the world was ending, he turned into a butterfly.”

__SPECIAL CASES FOR ALL THE THREE METHODS OF INTEGRALS CLASS 12 MATHS__

26. \int\frac{1}{x(x^n+1)}dx=\frac{1}{n}log{\left|\frac{x^n}{x^n+1}\right|}+C

27. \int\frac{dx}{x(x^4-1)}=\frac{1}{4}log{\left|\frac{x^4-1}{x^4}\right|}+C

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