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# c3 differentiation help! watch

1. 1. f(x) =

a) for f'(x) i product rule and got wrong answer?

point A is minimum point of curve
b) hence show x coordinate of A is solution of equation x = g(x) where

g(x) =

rep for help thx
2. any1
3. (Original post by spursj911)
1. dx/dy =

a. use your answer to dy/dx to find i nterms of e the value of dy/dx at y = e

2. f(x) =

a) for f'(x) i product rule and got wrong answer?

point A is minimum point of curve
b) hence show x coordinate of A is solution of equation x = g(x) where

g(x) =

rep for help thx

dx/dy=

dy/dx=
4. eh? you changed the question?
5. i got that one any1 know the second one?
6. (Original post by spursj911)
1. f(x) =

a) for f'(x) i product rule and got wrong answer?

point A is minimum point of curve
b) hence show x coordinate of A is solution of equation x = g(x) where

g(x) =

rep for help thx
try using product rule for

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