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Calle87 Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ 1 }{ \sqrt{x} }\]
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
it's lim as h>0 (f(x+h)f(x))/h
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
f(x+h) = 1/sqrt(x+h) f(x) = 1/sqrt(x)
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
Do some algebra, cancel out the hs
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ \frac{ 1 }{ \sqrt{x+h} }\frac{ 1 }{ \sqrt{x} } }{ h }\]
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
yea, now multiply by the conjugate i think.. both top and bottom
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ \frac{ \sqrt{x}+\sqrt{xh}}{ \sqrt{x}\sqrt{x+h} } }{ h }\]
 2 years ago

across Group TitleBest ResponseYou've already chosen the best response.1
Typo up there ^
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
oops meant to put the h on the bottom :}
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
it's supposed to be a minus
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
all the way on top in the middle
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
oh ya that to
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
and the other one on top must be a plus
 2 years ago

across Group TitleBest ResponseYou've already chosen the best response.1
Inside the radical, too.
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
u mixed up the signs
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
ok so i got all that part, the conjugates are what get me
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
twiddla time then.. hang on a sec
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ h }{ h \sqrt{x}\sqrt{x+h(\sqrt{x}+\sqrt{x+h})} }\]
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
h goes away
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
that square root is mess up in the bottom
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
No, since h is 0, on the bottom u just have sqrt(x+0)
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
so it's 1/sqrt(x) which is correct
 2 years ago

Calle87 Group TitleBest ResponseYou've already chosen the best response.0
at what point do i make h = 0?
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
when u dont run into trouble if u do.
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
1/h < NO 1/(4+1) < YES
 2 years ago
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