When integrated 1/y^2 becomes -1/y why is this?

  • Thread starter escobar147
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In summary, the integration of 1/y^2 results in -1/y due to the power rule of integration. The value of -1/y represents the antiderivative of 1/y^2 and is significant in the fundamental theorem of calculus. The value of y does not significantly affect the integration, but it does impact the overall value of the integral. The integral of 1/y^2 can also be written as ln(y) + C using logarithms. This integration has practical applications in various fields such as physics, engineering, and economics.
  • #1
escobar147
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when integrated 1/y^2 becomes -1/y why is this?
 
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  • #2
If you mean integrating with respect to y, try taing the derivative of -1/y.
 
  • #3
i still don't understand
 
  • #4
daveb said:
If you mean integrating with respect to y, try taing the derivative of -1/y.

escobar147 said:
i still don't understand
daveb is asking you to find this derivative:
$$\frac{d}{dy}\left(\frac{-1}{y}\right)$$
 

1. Why does the integration of 1/y^2 result in -1/y?

The integration of 1/y^2 results in -1/y because of the power rule of integration, which states that the integral of x^n is equal to x^(n+1)/(n+1). In this case, n is equal to -2, so the integral becomes y^(-2+1)/(-2+1) = y^-1/(-1) = -1/y.

2. What is the significance of -1/y in the integration of 1/y^2?

The value of -1/y represents the antiderivative or indefinite integral of 1/y^2. In other words, it is the function whose derivative is equal to 1/y^2. This is known as the fundamental theorem of calculus.

3. How does the value of y affect the integration of 1/y^2?

The value of y does not have a significant impact on the integration of 1/y^2. The power rule of integration still applies, regardless of the value of y. However, the value of y does affect the overall value of the integral, as seen in the result -1/y.

4. Can the integral of 1/y^2 be written in a different form?

Yes, the integral of 1/y^2 can be written in a different form using logarithms. By applying the power rule of integration, we get -1/y. This can then be rewritten as ln(y) + C, where C is the constant of integration.

5. What are the practical applications of integrating 1/y^2?

The integration of 1/y^2 has various practical applications in physics, engineering, and economics. For example, it can be used to solve problems involving inverse square laws, such as gravitational force and electric force. It is also useful in determining the total cost of production for a given quantity of goods.

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