Question

Find the limit of
f(x) + g(x)
as x approaches c.
lim
x→c
f(x) = 21/5

lim
x→c
g(x) = 4/5


Let c be a real number and let f and g be functions such that
lim
x→c
f(x) = L and
lim
x→c
g(x) = K.
Then the sum of the limits is as follows......


lim
x→c

f(x) + g(x)

=???????

Answer 1

I was doing (21/5) + (4/) and came out with 5 and that answer was wrong

Answer 2

ooops that is supposed to be (21/5) + (4/5)

Answer 3

Are you sure that's not right?

Answer 4

It should be right!

Answer 5

Thats what i thought as I was doing the math. Here is a screenshot of the entire problem and the wrong answer of 5

Answer 6

Uh, maybe they are looking for "L+K" there...

Answer 7

this is after all only step 1 of the problem...

Answer 8

lol, wow, i spent 35 mins racking my brain and whpalmer you are correct. I tried the l+k and that is correct!!!... THANK YOU!!

Answer 9

answer was hiding there in broad daylight :-)

Answer 10

After seeing that picture it makes more sense.

Answer 11

yes, relooking at the pic i see it now myself. it was in plain sight. Thanks you guys

Answer 12

you're welcome.

Answer 13

I agree that L+K=5, btw, but that isn't until step 73 or so :-)

Answer 14

@whpalmer4 @oldrin.bataku and @futuremathprofessor are the bests of the Math Section

Answer 15

glad to know i had SOMETHING right... and yes future i agree, wish i could choose two best responses

Answer 16

@FutureMathProfessor that's very kind...incorrect, but kind :-)

Answer 17

I know it's incorrect, I really shouldn't be included in that awesome list of people

Answer 18

I didn't even notice that you'd included yourself LOL

Answer 19

LUL