Question

If x-y=a (a= constant) then dy/dx=?

Answer 1

Answer:

$x - y = a \\ \\ \frac{dx}{dx} - \frac{dy}{dx} = \frac{da}{dx} \\ \\ = > 1 - \frac{dy}{dx} = 0 \\ \\ \\ \frac{dy}{dx} = 1$

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