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#1 2007-03-27 05:14:07

Roger Pacheco
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Math

ho w do u solve x2+2x+3? wuts the domain and range?

#2 2007-03-27 05:37:20

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: Math

i assume you mean:

in which case this has no solution in the reals, as it never cross the x-axis.

its domain is simply the real numbers, it has no restricted domain,

and its range is f(x) >= 2

Last edited by luca-deltodesco (2007-03-27 06:53:48)


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#3 2007-03-27 06:35:05

pi man
Member
Registered: 2006-07-06
Posts: 251

Re: Math

luca-deltodesco wrote:


...
and its range is f(x) >= 3

So should the range be f(x) >= 2?

Last edited by pi man (2007-03-27 06:35:42)

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#4 2007-03-27 06:53:33

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: Math

yes, it should be 2 tongue


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#5 2007-03-27 10:02:24

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Math

You mean

Then

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#6 2007-03-28 04:57:28

Roger Pacheco
Guest

Re: Math

thanx

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