Use the two-path test to prove that the following limit does not exist. y-2x2 lim y+x (x.y)-(0,0)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 91E
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Use the two-path test to prove that the following limit does not exist.
y-2x²
lim
4
(ху) — (0,0) у" +х*
.....
y-2x2
What value does f(x,y) =
approach as (x,y) approaches (0,0) along the x-axis? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
+X+
O A. f(x,y) approaches
(Simplify your answer.)
O B. f(x,y) approaches - o.
O C. f(x,y) approaches o.
O D. f(x,y) has no limit as (x,y) approaches (0,0) along the x-axis.
y-2x2
What value does f(x,y)=D
approach as (x y) approaches (0,0) along the y-axis? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
.4. 2
y +x
O A. f(x,y) approaches
(Simplify your answer)
O B. f(x,y) approaches co.
O C. f(x,y) approaches - o.
O D. f(x,y) has no limit as (x,y) approaches (0,0) along the y-axis.
Why does the given limit not exist?
O A. As (x,y) approaches (0,0) along different paths, f(x,y) does not always approach a finite value.
O B. As (x,y) approaches (0,0) along different paths, f(x,y) approaches two different values.
O C. As (x,y) approaches (0,0) along different paths, f(x,y) always approaches the same value.
Transcribed Image Text:Use the two-path test to prove that the following limit does not exist. y-2x² lim 4 (ху) — (0,0) у" +х* ..... y-2x2 What value does f(x,y) = approach as (x,y) approaches (0,0) along the x-axis? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. +X+ O A. f(x,y) approaches (Simplify your answer.) O B. f(x,y) approaches - o. O C. f(x,y) approaches o. O D. f(x,y) has no limit as (x,y) approaches (0,0) along the x-axis. y-2x2 What value does f(x,y)=D approach as (x y) approaches (0,0) along the y-axis? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. .4. 2 y +x O A. f(x,y) approaches (Simplify your answer) O B. f(x,y) approaches co. O C. f(x,y) approaches - o. O D. f(x,y) has no limit as (x,y) approaches (0,0) along the y-axis. Why does the given limit not exist? O A. As (x,y) approaches (0,0) along different paths, f(x,y) does not always approach a finite value. O B. As (x,y) approaches (0,0) along different paths, f(x,y) approaches two different values. O C. As (x,y) approaches (0,0) along different paths, f(x,y) always approaches the same value.
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