Math Problem Statement

Compute the following limit: lim (x → 1) (2x - 2)^3

Solution

To compute the limit limx1(2x2)3\lim_{x \to 1} (2x - 2)^3, we can directly substitute x=1x = 1 into the expression since the function is continuous at x=1x = 1.

Let's go through the steps:

  1. First, simplify the expression inside the cube: 2x2=2(1)2=02x - 2 = 2(1) - 2 = 0

  2. Now, take the cube of the result: (2x2)3=03=0(2x - 2)^3 = 0^3 = 0

Therefore, the limit is:

limx1(2x2)3=0\lim_{x \to 1} (2x - 2)^3 = 0

Would you like more details on limits or have any questions?

Here are 5 related questions:

  1. How do you compute limits for functions that are not continuous?
  2. What happens when the limit leads to an indeterminate form like 00\frac{0}{0}?
  3. Can you explain the difference between one-sided and two-sided limits?
  4. How do we evaluate limits involving infinity?
  5. When should we use L'Hopital's Rule for limits?

Tip: For polynomial and rational functions, direct substitution often works to compute limits if the function is continuous at the point of interest.

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Math Problem Analysis

Mathematical Concepts

Limits
Polynomials
Continuity

Formulas

Direct substitution in limits: lim (x → a) f(x)
Cubic functions: (a - b)^3

Theorems

Limit continuity theorem: If a function is continuous at a point, then lim (x → a) f(x) = f(a).

Suitable Grade Level

Grades 10-12