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OpenStudy (faiqraees):
Just a small simple question @hartnn Is my working correct here? y²=z 2y dy = dz 2y dy/dx = dz/dx (Does dividing by dx an allowed operation?)
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hartnn (hartnn):
yes, it is correct, and since dx is just a small change in x, you can divide it if you want derivative of y or z w.r.t .x
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