Question

(1/4 + 1/X)/(4+x) WITH LIMITAPPROACHING X TO -4

Answer 1

i cant use a calc

Answer 2

rewrite (1/4+1/x) so you can divide both sides by (4+x) and get rid of the indeterminant denom

Answer 3

4/4x + x/4x?

Answer 4

sure, whatever

Answer 5

just tell me what you get and I'll tell you if it's right

Answer 6

i already no the anwre but i dont know how to do it

Answer 7

\(\bf \Large lim_{x\rightarrow -4}
\cfrac{
\frac{
\frac{1}{4}+1
}{x}
}{
4+x
} \quad ? \)

Answer 8

dont btoher helpingme i ur trolling me

Answer 9

no its (1/x)

Answer 10

I'm not trolling you

Answer 11

then just get out

Answer 12

(1/4 + 1/X)/(4+x) = (16(4+4x)/(4+4x)) does that help?

Answer 13

the anwer isnt 16

Answer 14

ohh shoot... I see so.... \(\bf\Large lim_{x\rightarrow -4}
\cfrac{
\frac{1}{4}+\frac{1}{x}
}
{
4+x
} \) right

Answer 15

yes sir

Answer 16

http://www.wolframalpha.com/input/?i=%281%2F4+%2B+1%2FX%29%2F%284%2Bx%29++as+x+approaches+-4

Answer 17

ur toxic inky

Answer 18

@jdoe0001 can u help me plz?

Answer 19

Dude, I got a 5 on my AP BC calc test. also, disagreeing with a CAS is not very smart

Answer 20

the teacher put in -1/16 im in calc ab

Answer 21

i got -16

Answer 22

gimme a sec, I needa write down the problem if I want to make anything useful out of it.

Answer 23

http://www.wolframalpha.com/input/?i=limit&a=*C.limit-_*Calculator.dflt-&f2=%281%2F4+%2B+1%2Fx%29%2F%284%2Bx%29&f=Limit.limitfunction_%281%2F4+%2B+1%2Fx%29%2F%284%2Bx%29&f3=-4&f=Limit.limit_-4&a=*FVarOpt.1-_**-.***Limit.limitvariable--.**Limit.direction--.**Limit.limitvariable2-.*Limit.limit2-.*Limit.direction2---.*--

Answer 24

\(\bf lim_{x\rightarrow -4}
\cfrac{
\frac{1}{4}+\frac{1}{x}
}
{
4+x
}\\
-------------\\
\cfrac{
\frac{1}{4}+\frac{1}{x}
}
{
4+x
} \implies
\cfrac{
\frac{x+4}{4x}
}{4+x} \implies
\cfrac{x+4}{4x} \times \cfrac{1}{4+x}\\
\implies \cfrac{\cancel{4+x}}{4x} \times \cfrac{1}{\cancel{4+x}}\)

Answer 25

yes but i need to know how they got the answer withough a calc?

Answer 26

yeah yeah I'll give the medal to that dude

Answer 27

lol

Answer 28

@morgan34 sign up and click show steps sigh

Answer 29

I'm too lazy to work out the problem since I don't have any paper with me, so you may as well get help from the other dude.

Answer 30

how come u didnt put 4 + x/1

Answer 31

cause you can't algebra

Answer 32

\(\bf\Large { \cfrac{
\frac{x+4}{4x}
}{4+x} \implies
\cfrac{
\frac{x+4}{4x}
}{\frac{4+x}{1}}}\)

Answer 33

o yeah orgot ty

Answer 34

bless

Answer 35

dude, wolfram alpha works better - just get the 14 day pro trial and type in a problem and click show steps

Answer 36

cause then you can do ur maths homework in 3 minutes at 4AM

Answer 37

just don't make a habit out of it or you'll get a 1 on the AP test lol

Answer 38

mine expired

Answer 39

make a new account and do the same thing - free users can still get 3 free solutions a day

Answer 40

ok thanks