Question 1 1 pts The function z = 4x²y³ +6xy² + 3 xy has exactly three critical points, forming a triangle in the x, y plane. If the perimeter of that triangle is A, then cos(2A) is 0.667 -0.082 0.125 -0.212 0.163 0.578 -0.883 0.343
Question 1 1 pts The function z = 4x²y³ +6xy² + 3 xy has exactly three critical points, forming a triangle in the x, y plane. If the perimeter of that triangle is A, then cos(2A) is 0.667 -0.082 0.125 -0.212 0.163 0.578 -0.883 0.343
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 77E
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
Transcribed Image Text:Question 1
1 pts
The function z = 4x²y³ +6xy² + 3 xy has exactly three critical points, forming a
triangle in the x, y plane. If the perimeter of that triangle is A, then cos(2A) is
0.667
-0.082
0.125
-0.212
0.163
0.578
-0.883
0.343
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