Prove (dy/dx) = (d/dx)(c/v) = [-c(dv/dx)]/(v^2), if y = c/v

The derivative of the quotient of a constant and a function formula. Prove (dy/dx) = (d/dx)(c/v)=[-c(dv/dx)]/(v^2), if y = c/v, or the derivative of y with respect to x of the quotient of a constant and a function is equal to the negative quantity of c times the derivative of v with respect to x divided by v square, if y = c/v.

Proving this formula by means of the method of differentiation involving limits and increments.

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