NCERT Class 12 · Ch 7 Exercise 7.4 · Q1
NCERT Class 12 Maths · Chapter 7 Integrals · Exercise 7.4 Question 1
Evaluate \(\int \frac{3 x^{2}}{x^{6} + 1}\, dx\).
💡 Concept Hints
- Identify the domain and the inner and outer functions, or the relevant one-sided limits.
- Apply the appropriate differentiation or limit rule, keep all chain factors, and check exceptional points.
✅ Step-by-Step Solution
Final Answer: \(\operatorname{atan}{\left(x^{3} \right)}\) + C.
- Work on each open interval where the integrand is real and defined.
- u=x³, du=3x²dx.
- An antiderivative is F(x)=\(\operatorname{atan}{\left(x^{3} \right)}\).
- Differentiate this expression to check that F′(x)=\(\frac{3 x^{2}}{x^{6} + 1}\). Add an arbitrary constant C on each domain component.
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