Math Problem Statement

lim x approaches 3 5x+2/2x-3

Solution

To evaluate the limit of the expression limx35x+22x3\lim_{x \to 3} \frac{5x + 2}{2x - 3}, we follow these steps:

Step 1: Direct Substitution

First, attempt to substitute x=3x = 3 directly into the expression:

5(3)+22(3)3=15+263=173\frac{5(3) + 2}{2(3) - 3} = \frac{15 + 2}{6 - 3} = \frac{17}{3}

Conclusion:

The limit as xx approaches 3 is:

limx35x+22x3=173\lim_{x \to 3} \frac{5x + 2}{2x - 3} = \frac{17}{3}

Would you like further details on any of the steps, or do you have any questions?

Related Questions:

  1. What happens if the denominator approaches zero in similar limits?
  2. How would the limit change if xx approaches a value other than 3?
  3. What is the difference between evaluating limits at a point and at infinity?
  4. Can you provide examples of limits that result in indeterminate forms like 0/00/0?
  5. How do we handle limits where the function has a discontinuity?

Tip: Always try direct substitution first when evaluating limits; if that leads to an indeterminate form, then explore algebraic simplifications or other techniques.

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Math Problem Analysis

Mathematical Concepts

Limits
Algebra

Formulas

Direct substitution for limits: lim x→a f(x)

Theorems

Limit Theorem for Rational Functions

Suitable Grade Level

Grades 10-12