Math Problem Statement

Integrate

Integrate \( \int \frac{dx}{2x^2 + 5x + 1} \)

Solution

from sympy import symbols, integrate

Define the variable and the function

x = symbols('x') expr = 1 / (2x**2 + 5x + 1)

Perform the integration

integral = integrate(expr, x) integralsqrt(17)*log(x - sqrt(17)/4 + 5/4)/17 - sqrt(17)*log(x + sqrt(17)/4 + 5/4)/17sqrt(17)*log(x - sqrt(17)/4 + 5/4)/17 - sqrt(17)*log(x + sqrt(17)/4 + 5/4)/17successThe solution to the given integral is:

dx2x2+5x+1=1717ln(x174+54)1717ln(x+174+54)+C\int \frac{dx}{2x^2 + 5x + 1} = \frac{\sqrt{17}}{17} \ln\left(x - \frac{\sqrt{17}}{4} + \frac{5}{4}\right) - \frac{\sqrt{17}}{17} \ln\left(x + \frac{\sqrt{17}}{4} + \frac{5}{4}\right) + C

Where CC is the constant of integration.

Let me know if you need further clarification or have more questions.


Here are five related questions you might explore:

  1. How can this integral be solved using partial fraction decomposition?
  2. What is the domain of the function in the integral?
  3. How does completing the square help in solving such integrals?
  4. Can we solve this integral numerically for a specific range of xx?
  5. How does the logarithmic function's behavior influence the solution?

Tip: Always check if completing the square simplifies the denominator in a quadratic integral before attempting partial fractions!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Integration
Logarithmic Functions
Completing the Square
Partial Fraction Decomposition

Formulas

\( \int \frac{dx}{ax^2 + bx + c} = \frac{1}{\sqrt{a}} \ln\left| \frac{2ax + b - \sqrt{\text{discriminant}}}{2ax + b + \sqrt{\text{discriminant}}} \right| + C \)
Completing the square for a quadratic \( ax^2 + bx + c \)

Theorems

Integration of Rational Functions
Properties of Logarithmic Functions

Suitable Grade Level

Grades 11-12