Question

The concept of the integral arose from the need to calculate the area of a curved region. For example, calculating the area delimited by the region above the x-axis and below the graph of the function f(x) = x3 in a given limited interval is not such a simple task if we consider the knowledge acquired throughout basic education. But the definition of Definite Integral allows us to obtain this area precisely. Thus, given the function f(x) = x3, the area of the region below the graph of f, above the x-axis in the interval from 0 to 2 is equal to.

134

likes

672 views

Answer to a math question The concept of the integral arose from the need to calculate the area of a curved region. For example, calculating the area delimited by the region above the x-axis and below the graph of the function f(x) = x3 in a given limited interval is not such a simple task if we consider the knowledge acquired throughout basic education. But the definition of Definite Integral allows us to obtain this area precisely. Thus, given the function f(x) = x3, the area of the region below the graph of f, above the x-axis in the interval from 0 to 2 is equal to.

$Expert avatar$

4.8

113 Answers

1. \ \text{Evaluate the definite integral of the function:}

A = \int_{0}^{2} x^3 \, dx

2. \ \text{Find the antiderivative of} \ x^3:

\int x^3 \, dx = \frac{x^4}{4}

3. \ \text{Apply the limits of integration} \ (0 \ \text{to} \ 2):

A = \left[ \frac{x^4}{4} \right]_{0}^{2}

4. \ \text{Evaluate the antiderivative at the upper limit (2) and lower limit (0):}

A = \frac{2^4}{4} - \frac{0^4}{4}

5. \ \text{Simplify the expression:}

A = \frac{16}{4} - 0

6. \ \text{Finish the calculation:}

A = 4

\text{Therefore, the area is} \ 4

Frequently asked questions (FAQs)

What is the length of the opposite side, given an angle of 30 degrees and a hypotenuse of 10?

Question: What is the derivative of ∫(x^3 + 2x^2 - 5) from 0 to 1?

What is the period, amplitude, and range of the tangent function f(x) = tan(x)? Are there any vertical or horizontal asymptotes?

New questions in Mathematics