Derivación Implícita | Derivada de funciones implícitas

Jaramáticas
29 Oct 202107:33

Q & A

  • What is the main topic discussed in the video?

    -The main topic of the video is implicit derivatives, with examples and two different methods for calculating them.

  • What is the first example used to demonstrate implicit derivatives?

    -The first example involves the equation of a circle: x^2 + y^2 = 25.

  • What is the first method used to calculate the derivative in the first example?

    -The first method involves differentiating both sides of the equation with respect to x. This gives the derivative of x^2 as 2x and the derivative of y^2 as 2y * y'.

  • How is the derivative of y^2 with respect to x derived?

    -The derivative of y^2 with respect to x is calculated using the chain rule. It results in 2y * y', where y' is the derivative of y with respect to x.

  • What is the simplified form of the derivative in the first example?

    -The simplified derivative is y' = -x / y.

  • What is the second method introduced in the video to calculate implicit derivatives?

    -The second method involves setting the equation equal to zero and using the formula for implicit differentiation, which gives the derivative in terms of x and y.

  • How does the second method calculate the derivative of the equation x^2 + y^2 - 25 = 0?

    -In the second method, the derivative is calculated by differentiating the equation with respect to x and y. This leads to a derivative of -2x / 2y, which simplifies to y' = -x / y.

  • What is the second example presented in the video, and why is it more complex?

    -The second example involves a more complex expression, specifically the product of two functions, x^2 and v, as well as another term involving x and y. The complexity arises from applying the product rule and differentiating the functions accordingly.

  • How is the derivative calculated in the second example using the product rule?

    -The product rule is applied by differentiating each part of the product separately. This results in terms involving x, y, and their respective derivatives, including terms like x^2, cos(y), and sin(y).

  • What method is used to isolate y' in the second example, and what is the final result?

    -In the second example, y' is isolated by factoring out common terms and then solving for y'. The final result is an expression involving x, y, and trigonometric functions, which can be further simplified.

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