Yellow Running Shorts, Juno

Derivata del quoziente di due funzioni

One important thing to remember is' that the derivative you can 'only do those points where the function in the denominator and' non-zero
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If I have the quotient of two functions and I do want the derivative: The derivative of the first function
the second does not least the first derived function as such for the derivative of the second, all divided by the second function the square symbols in

if f (x) = y
--------
g (x)

then f '(x) · g (x) - f (x) · g' (x )
y '= ---------------------------------
[g (x)] 2

example:
the derivative of the function y =
x4/senx
The derivative of x4 and 'The derivative of 4x3
senx and' cosx
then
4x3senx - x4cosx
y '= ------------ -----------
sen2x

I put the brackets to make more 'understandable expression
writing with the surroundings and normal' better leave them out
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Usually in schools demonstration jumps, however if you need proof of the rule of the derivative of a quotient