Partial fractions QWatch

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#1
Express f(x) in partial fractions;

f(x) = (x+5)/(x-1)(2x+1)

When x=1, A=2.
When x= -1/2, B=-3.

Therefore,

f(x) = (x+5)/(x-1)(2x+1) = 2/(x+1) + (-3)/(2x+1)

Then, find the exact x-coordinates of the stationary points of the curve y=f(x).

How do I do this part?
0
14 years ago
#2
differentiation. you'll probably have to use the chain rule on

2 (x-1)^-1 - 3 (2x+1)^-1
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#3
Oh. Many thanks el.
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