evaluate the following integral.\n int\frac{dx}{x^{2}+2x + 37}\nrewrite the integrand by completing the…

evaluate the following integral.\n int\frac{dx}{x^{2}+2x + 37}\nrewrite the integrand by completing the square in the denominator.\n \frac{1}{x^{2}+2x + 37}=\frac{1}{(x + 1)^{2}+36}\nfind the indefinite integral.\n int\frac{dx}{x^{2}+2x + 37}=square
Answer
Explanation:
Step1: Recognize integral form
We know that $\int\frac{dx}{a^{2}+u^{2}}=\frac{1}{a}\arctan(\frac{u}{a})+C$. After completing the square, our integral is $\int\frac{dx}{(x + 1)^{2}+36}$, where $u=x + 1$ and $a = 6$.
Step2: Apply integral formula
Using the formula $\int\frac{dx}{a^{2}+u^{2}}=\frac{1}{a}\arctan(\frac{u}{a})+C$, we substitute $u=x + 1$ and $a = 6$ into it. So $\int\frac{dx}{(x + 1)^{2}+36}=\frac{1}{6}\arctan(\frac{x + 1}{6})+C$.
Answer:
$\frac{1}{6}\arctan(\frac{x + 1}{6})+C$