Functions Derivatives Quiz

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Questions and Answers

Le derivate del function ln((2x - 1)^2) / (2x - 1) es ______.

2

Que es le antiderivate de ln((2x - 1)^2) / (2x - 1)?

2x - 1 + C

Qual es le valor del constante C in le antiderivate de f'(x)?

-3

What does the horizontal axis of the standard trip time curve represent?

<p>Multiple of the nominal current (C)</p> Signup and view all the answers

If the nominal current ($I_n$) is 4 A and the actual current is 10 A, what multiple is represented on the x-axis?

<p>2 (B)</p> Signup and view all the answers

What is the unit of measurement for time on the trip time curve?

<p>Seconds (B)</p> Signup and view all the answers

When estimating trip times for a thermal-magnetic circuit breaker, what needs to be observed on the curve?

<p>The range of time values (D)</p> Signup and view all the answers

What type of scale is used for both axes in the trip time curve graph?

<p>Logarithmic scale (C)</p> Signup and view all the answers

Flashcards

Differentiable function

A function that has a derivative at every point in its domain.

Derivative of f(x)

The instantaneous rate of change of a function f at a given point x.

f'(x) formula

f'(x) = ln((2x-1)^2) / (2x-1)

f(1) = -3

The value of the function f at x = 1 is -3.

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Calculate f( ? )

Determine the value of function f at another point.

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Find value at (1/2, -e/2)

The point on the graph at which the x coordinates is 1/2

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Calculate f((1/2))

Find the value of the function given the x-value as (1/2)

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Integration

Method to find an anti-derivative

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Initial condition

Known value of function at a specific point

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Find the value of f(x) at x = 1/2

Utilize the provided information to find the requested function value

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Thermal-magnetic circuit breaker

A type of electrical switch that protects circuits from overloads and short circuits. It combines thermal and magnetic elements for different tripping mechanisms.

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Trip time

The time it takes for a circuit breaker to open and interrupt the current flow when an overcurrent or short circuit occurs.

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Nominal current (In)

The rated current that a circuit breaker is designed to carry continuously without tripping.

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Current multiple

The ratio of the actual current flowing through the circuit breaker to its nominal current.

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Estimating trip time

Determining the minimum and maximum times it would take a thermal-magnetic circuit breaker to trip, based on the current multiple and the trip time curve.

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Study Notes

Function Derivative and Calculation

  • A function, f, is differentiable within its domain.
  • The derivative of the function f, denoted as f'(x), is given by ln[(2x - 1)²] / (2x - 1).
  • The value of f(1) is -3.
  • The task is to determine the value of f(1/2 - e/2 ).

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