Find the limit, if it exists. (if an answer does not exist, enter dne.)
lim (x, y)→(0, 0) (x^2 + y^2)/((square root x^2 + y^2 + 49) − 7)

Step-by-step explanation:

to find the limit:

we need to first rationalize our expression.

Now this is our simplified expression, we can use our limit now.

Limit exists and it is 14 at (0,0)

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation: