- #1

- 52

- 0

whats is the derivative of you are asked to integrate;

x(t) = pi / t

^{2}

i dont have a rule for this, so i cant integrate it :( help

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- Thread starter JakePearson
- Start date

- #1

- 52

- 0

whats is the derivative of you are asked to integrate;

x(t) = pi / t

i dont have a rule for this, so i cant integrate it :( help

- #2

Pengwuino

Gold Member

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- #3

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whats is the derivative of you are asked to integrate;

x(t) = pi / t^{2}

i dont have a rule for this, so i cant integrate it :( help

Sure you have a rule: the power rule for integration. If c is a constant and n is not equal to -1, then

[tex]

\int cx^n \,dx = \frac{cx^{n+1}}{n+1} + C.

[/tex]

Pi is just a constant. Can you write the function x(t) as x(t)=pi*t

Last edited:

- #4

Mark44

Mentor

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hey guys

whats is the derivative of you are asked to integrate;

x(t) = pi / t^{2}

Someone looking at your question would probably be confused about what you are asking. At first appearances it looks like you want the derivative of the function you show, but the "asked to integrate" part would throw most people off.

For your own sake and for the sakes of the people who are trying to help you, try to ask your questions in the clearest way you can.

- #5

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what would be the derivative if you are asked to differentiate x(t) = pi / t^2

- #6

- 537

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what would be the derivative if you are asked to differentiate x(t) = pi / t^2

Are you being asked to differentiate the function you gave, or integrate (i.e. anti-differentiate)?

To integrate, follow my advice above. To differentiate, apply the same advice to the power rule for derivatives. If c is a constant, n is any number (positive or negative), and f(x)=cx

- #7

Mark44

Mentor

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I rest my case.Are you being asked to differentiate the function you gave, or integrate (i.e. anti-differentiate)?

- #8

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what would be the derivative if you are asked to differentiate x(t) = pi / t^2

What rules of differentiation do you know? Or do you just know the definition of the derivative of a function?

- #9

HallsofIvy

Science Advisor

Homework Helper

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Do you know that pi/t^2= pi t^{-2}? Do you know the derivative of t^n?

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