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getzgetzu
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f(x)=x-1/x , f(1/x)= 06 May 2006, 03:56
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f(x)=x-1/x , f(1/x)=?



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f(x)=x-1/x , f(1/x)= 07 May 2006, 10:15
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getzgetzu
f(x)=x-1/x , f(1/x)=?
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f(x) = (x^2-1)/x

f(1/x) = 1/((x^2-1)/x)
= x/(x^2-1)
= x/(x-1)(x+1)
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f(x)=x-1/x , f(1/x)= 07 May 2006, 11:30
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getzgetzu
f(x)=x-1/x , f(1/x)=?

f(x) = (x^2-1)/x

f(1/x) = 1/((x^2-1)/x)
= x/(x^2-1)
= x/(x-1)(x+1)
Show more


You need to replace 'x' by '1/x'
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ipc302
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f(x)=x-1/x , f(1/x)= 07 May 2006, 11:56
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f(x)=x-1/x ,

f(1/x)= (1/x) - (1/(1/x))
= (1/x) -x
= -(x -(1/x))
= -f(x)
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pesquadero
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f(x)=x-1/x , f(1/x)= 07 May 2006, 12:09
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Zooroopa
pesquadero
getzgetzu
f(x)=x-1/x , f(1/x)=?

f(x) = (x^2-1)/x

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

You need to replace 'x' by '1/x'
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Oops! Thanks for pointing that out.
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Zooroopa
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f(x)=x-1/x , f(1/x)= 08 May 2006, 06:00
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Not a problem pal :-D !
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Dilshod
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f(x)=x-1/x , f(1/x)= 08 May 2006, 09:40
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All we have to do is substitute x for 1/x
F(1/x)=1/x - 1/(1/x)= 1/x-x^2. or f(1/x)=-f(x)
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ywilfred
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f(x)=x-1/x , f(1/x)= 08 May 2006, 20:00
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f(1/x) = 1/x - 1/(1/x) = 1/x - x = (1-x^2)/x
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mendiratta_1812
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f(x)=x-1/x , f(1/x)= 09 May 2006, 00:17
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Hi, I'm new to using forums. It might seem funny to you, but please tell me the meaning of OA?
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TeHCM
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f(x)=x-1/x , f(1/x)= 10 May 2006, 01:20
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ipc302
f(x)=x-1/x ,

f(1/x)= (1/x) - (1/(1/x))
= (1/x) -x
= -(x -(1/x))
= -f(x)
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:good. Good question and agree with answer
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TeHCM
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f(x)=x-1/x , f(1/x)= 10 May 2006, 01:20
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mendiratta_1812
Hi, I'm new to using forums. It might seem funny to you, but please tell me the meaning of OA?
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Welcome!

OA = Offiicial Answer
OE = Official Explanation
OG = Official Guide



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
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Thank you for understanding, and happy exploring!