Find the value of the real number 𝑎0 of the Fourier series if f(x) = 𝑥2 for 0 ≤ x ≤ 2𝜋.Question 1Select one:-8𝜋23-4𝜋234𝜋238𝜋23
Question
Find the value of the real number 𝑎0
of the Fourier series if f(x) = 𝑥2
for 0 ≤ x ≤ 2𝜋
.
Question 1 Select one:
-8𝜋/23
-4𝜋/23
4𝜋/23
8𝜋/23
Solution
The Fourier series of a function f(x) is given by:
f(x) = a0/2 + Σ [an cos(nx) + bn sin(nx)]
where the coefficients a0, an, and bn are given by:
a0 = (1/π) ∫ from 0 to 2π f(x) dx an = (1/π) ∫ from 0 to 2π f(x) cos(nx) dx bn = (1/π) ∫ from 0 to 2π f(x) sin(nx) dx
In this case, f(x) = x^2 and we want to find a0. So we need to compute the integral:
a0 = (1/π) ∫ from 0 to 2π x^2 dx
This is a simple power rule integral, so we get:
a0 = (1/π) * [x^3/3] from 0 to 2π
Evaluating at the limits gives:
a0 = (1/π) * [(2π)^3/3 - 0] a0 = (1/π) * [8π^3/3] a0 = 8π^2/3
So, the correct answer is 8π^2/3. However, none of the options you provided match this result. There might be a mistake in the question or the provided options.
Similar Questions
Obtain the Fourier series of the function f x given as follows:𝑓(𝑥) = { 𝑥, 0 ≤ 𝑥 ≤ 𝜋0, 𝜋 ≤ 𝑥 ≤ 2𝜋 }
Find the Fourier Cosine transform 𝐹𝑐𝑒-𝑎𝑥 of f(x) = 𝑒-𝑎𝑥 where a>0Question 2Select one:-2𝜋𝑎𝑎2-𝑤22𝜋𝑎𝑎2+𝑤22𝜋-𝑎𝑎2+𝑤2-2𝜋𝑎𝑎2+𝑤2
The goal of this exercise is to determine the Fourier transform of the function𝑓(𝑥)={𝑥if −1<𝑥<10otherwisef(x)={ x0 if −1<x<1otherwise
Consider the following function: f(x) = { sin x , if 0 ≤ x ≤ π 4 cos x , if π 4 ≤ x ≤ π 2 . Expand f(x) in a Fourier series of sine terms.
Find the Fourier series of the function𝑓𝑥=-𝑘, -2<𝑥<0𝑘, 0<𝑥 <2 P = 2l = 4, l = 2
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.