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a problem from the textbook
Posted: Fri Jan 25, 2013 1:43 pm
by Shapnil
This problem is from text book of class 9-10.but I'm a little bit confused about it. Please help.
What is domain of the following function :
$F(x)=\ln x$
Re: a problem from the textbook
Posted: Fri Jan 25, 2013 2:18 pm
by nafistiham
for $\ln(x)$, $x$ can not be negative. So, $x>0$ is the domain.
for more, see the
Graph
or visit Wikipedia.
And about equation editor, I think something is going wrong. You may bookmark
it. Moreover, you could just use two $ around the equation and latex it. It is so easy. equation editor won't help you inserting $$. right ?
Re: a problem from the textbook
Posted: Sat Jan 26, 2013 9:02 am
by Shapnil
ya i've done the same.bt in the answer sheet of the text book it is x≥0.that's why i was confused.thanks
Re: a problem from the textbook
Posted: Sun Jan 27, 2013 1:24 pm
by nafistiham
In Bangladesh, most times, you can believe yourself, than the text books' answer.
Because, here, doing everything correctly is too hard for so many people, where, one student can have more confidence on himself, if he practices enough.
Still, thanks for sharing.
Now, anyone who'll see the post will now about the mistake.
