which is the quotient-rule formula. It is much easier
just to use the product and chain rules for any problem at hand rather than memorize the quotient-rule
formula.
f x
g x
f x
g x
g x
f x
g x
f x
( )
( )
( )
( )
( )
'( )
( )
(
=
′ +
⋅ − ( ) ⋅ ′
=
−
−2
) ) ( )
( )
⋅ ′
( )
g x
g x
2
434 quotient rule
just to use the product and chain rules for any problem at hand rather than memorize the quotient-rule
formula.
f x
g x
f x
g x
g x
f x
g x
f x
( )
( )
( )
( )
( )
'( )
( )
(
=
′ +
⋅ − ( ) ⋅ ′
=
−
−2
) ) ( )
( )
⋅ ′
( )
g x
g x
2
434 quotient rule