Math Problem Statement

Consider the function f(x) = 10x^3 - 5x^2 + 3x - 5. The antiderivative of f(x), where C = 0, is F(x) = Ax^4 + Bx^3 + Cx^2 + Dx. Find the values of A, B, C, and D.

Solution

To find the values of AA, BB, CC, and DD for the antiderivative F(x)F(x) of the function f(x)=10x35x2+3x5f(x) = 10x^3 - 5x^2 + 3x - 5, we need to integrate f(x)f(x) term-by-term:

Step-by-Step Solution

  1. Integrate 10x310x^3: 10x3dx=104x4=2.5x4\int 10x^3 \, dx = \frac{10}{4}x^4 = 2.5x^4 So, A=2.5A = 2.5.

  2. Integrate 5x2-5x^2: 5x2dx=53x3=53x3\int -5x^2 \, dx = \frac{-5}{3}x^3 = -\frac{5}{3}x^3 So, B=53B = -\frac{5}{3}.

  3. Integrate 3x3x: 3xdx=32x2=1.5x2\int 3x \, dx = \frac{3}{2}x^2 = 1.5x^2 So, C=1.5C = 1.5.

  4. Integrate 5-5: 5dx=5x\int -5 \, dx = -5x So, D=5D = -5.

Final Answer

The values are:

  • A=2.5A = 2.5
  • B=53B = -\frac{5}{3}
  • C=1.5C = 1.5
  • D=5D = -5

The antiderivative F(x)F(x) is therefore: F(x)=2.5x453x3+1.5x25xF(x) = 2.5x^4 - \frac{5}{3}x^3 + 1.5x^2 - 5x

Would you like further details on the integration steps or have any other questions?

Here are some related questions for practice:

  1. How would you find the antiderivative if C0C \neq 0?
  2. What happens to the constants if the function f(x)f(x) included higher powers of xx?
  3. How would you confirm that F(x)F(x) is correct by differentiation?
  4. What is the geometric interpretation of the antiderivative in terms of area under f(x)f(x)?
  5. How does the degree of f(x)f(x) affect the degree of F(x)F(x)?

Tip: Always double-check constants by differentiating your antiderivative to ensure it matches the original function.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Calculus
Antiderivatives
Integration

Formulas

Integral of x^n is (x^(n+1))/(n+1) + C
Antiderivative of polynomial functions term-by-term

Theorems

Fundamental Theorem of Calculus

Suitable Grade Level

Grades 11-12