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Homework Statement
I'm trying to find da/a to calculate the relative possible error in the radial acceleration. The equation I have to derive from is a = 4π²n²rt ⁻² (it cannot be a = v²/r). I'm not really sure how to find da since it has 3 variables?
Homework Equations
a = 4π²n²rt ⁻²
da/a = ?
The Attempt at a Solution
I'm assuming you use the u-substitution method...? Any tips or websites that can help me do this?