Differentiation, I'm I doing it right?

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Homework Statement


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Homework Equations


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The Attempt at a Solution


I took dt of both sides. The part that confuses me is when you take the derivative of 1 over t . The one becomes a 0 and the t becomes a dt. Just want to make sure I did that right.
 
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  • Typed list of five differentiation exercises, labelled a to e, with functions of t, x, s and x, including f(t) = t + 1/t and f(x) = x^2 - 2x^-3 + 4/x^4.
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  • Handwritten working: f(t) = 1/t on the top line, with d f(t) / dt = dt on the line below, matching the differential form of the derivative written on both sides.
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If you are taking the derivative of 1/t think of it as ##t^{-1}## and apply the rule for powers.
 
Edit: crossposted. You are on the right track now.

You should not end up with ## dt ## on its own. Go back to your notes and look at how to differentiate two terms added together, and how to differentiate ## x^n ## (bearing in mind that ## x = x^1 ## and ## \frac 1x = x^{-1} ##).