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April 21, 2014

April 21, 2014

Posted by **Farah** on Sunday, November 20, 2011 at 3:57am.

y'(t) = ?

- diff eqn. -
**drwls**, Sunday, November 20, 2011 at 6:30amYou are not being asked to solve a differential equation. You only have to take the derivative of the y(t) function you are given.

Just add the derivatives of the three separate terms.

The derivative of

-0.2451 cos(4t)

is

0.9804 sin(4t)

Your third term is illegible.

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