FinalExam

FinalExam

TheEighthWeek14PartialDerivatives

UnitTest-CH14

1、单选题:

find
the specific function values

‎选项:
A: (a)0 (b)0 (c)58(d)33
B: (a)0 (b)0 (c)55(d)36
C: (a)0 (b)7(c)56(d)33
D: (a)2(b)0 (c)56(d)33
答案: 【 (a)0 (b)0 (c)58(d)33

2、单选题:

Find the limit

​选项:
A: 1
B: -1
C: 0
D: 1/2
答案: 【 1

3、单选题:

At
what points (x, y, z) in space is the function continuous?

‍选项:
A:

B:
C:

D:
答案: 【 

4、单选题:

find
the limit of ƒ 

​选项:
A:
B:
C:
D:
答案: 【 

5、单选题:

Find
all the second-order partial derivatives of the function

‏选项:
A:



B:



C:


D:



答案: 【 


6、单选题:

find
the directions in which the functions increase and decrease most rapidly at P,
Then find the derivatives of the functions in this direction.

‌选项:
A:



B:
C:
D:
答案: 【 

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