In Exercises 65–70, find the limit of f as (x, y)→ (0, 0) or show that the limit does not exist. x* - xy² x² + y? 65. f(x, y) 66. f(x, y) = cos x² + y² y2 2x 67. f(x, y) = 68. f(x, y) = x² + y? x² + x + y? x| + ]y| x² + y² 69. ƒ(x, y) = tan¬ x² – y? x² + y? 70. f(x, y)
In Exercises 65–70, find the limit of f as (x, y)→ (0, 0) or show that the limit does not exist. x* - xy² x² + y? 65. f(x, y) 66. f(x, y) = cos x² + y² y2 2x 67. f(x, y) = 68. f(x, y) = x² + y? x² + x + y? x| + ]y| x² + y² 69. ƒ(x, y) = tan¬ x² – y? x² + y? 70. f(x, y)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.5: Graphs Of Functions
Problem 59E
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Question
![In Exercises 65–70, find the limit of f as (x, y)→ (0, 0) or show that
the limit does not exist.
x* - xy²
x² + y?
65. f(x, y)
66. f(x, y) = cos
x² + y²
y2
2x
67. f(x, y) =
68. f(x, y) =
x² + y?
x² + x + y?
x| + ]y|
x² + y²
69. ƒ(x, y) = tan¬
x² – y?
x² + y?
70. f(x, y)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe3872c3a-ac61-46eb-9776-0c5c04bf3529%2Fd4cee86d-f9c1-4293-a5cd-7d725162b09a%2Fd1i3s9n.png&w=3840&q=75)
Transcribed Image Text:In Exercises 65–70, find the limit of f as (x, y)→ (0, 0) or show that
the limit does not exist.
x* - xy²
x² + y?
65. f(x, y)
66. f(x, y) = cos
x² + y²
y2
2x
67. f(x, y) =
68. f(x, y) =
x² + y?
x² + x + y?
x| + ]y|
x² + y²
69. ƒ(x, y) = tan¬
x² – y?
x² + y?
70. f(x, y)
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