89.6k views
5 votes
Find the length of the graph of f(x)=ln(5sec(x)) for 0≤x≤π/3 .

User Domo
by
7.9k points

1 Answer

3 votes

Final answer:

To find the length of the graph of f(x) = ln(5sec(x)) for 0 ≤ x ≤ π/3, we need to evaluate the integral of the absolute value of the derivative of f(x) over the given interval.

Step-by-step explanation:

To find the length of the graph of f(x) = ln(5sec(x)) for 0 ≤ x ≤ π/3, we need to evaluate the integral of the absolute value of the derivative of f(x) over the given interval.

Step 1: Find the derivative of f(x) using the chain rule. The derivative of ln(u) is 1/u * u', so the derivative of ln(5sec(x)) is 1/(5sec(x)) * (5sec(x)tan(x)).

Step 2: Take the absolute value of the derivative of f(x) to find the length of the graph. The absolute value of 1/(5sec(x)) * (5sec(x)tan(x)) is |tan(x)|.

Step 3: Evaluate the integral of |tan(x)| over the interval 0 to π/3. This can be done using integration techniques or using a graphing calculator. The result will give the length of the graph of f(x).

The student is asking to find the length of the graph of the function f(x) = ln(5sec(x)) over the interval from 0 to π/3. This requires calculating the arc length of the curve represented by the function. The formula for the arc length of a function f(x) from a to b is given by:

L = ∫_a^b √(1 + [f'(x)]^2) dx

In this case, we first need to find the derivative of f(x), and then integrate the square root of 1 plus the square of that derivative over the interval from 0 to π/3. It involves the application of calculus concepts like differentiation and integration.

User Olympia
by
8.2k points

Related questions

asked Oct 2, 2024 228k views
Curtis asked Oct 2, 2024
by Curtis
8.7k points
1 answer
5 votes
228k views
1 answer
3 votes
6.0k views