.


:




:

































 

 

 

 


3.




. 1- 2- .

3.1. :

1) F(2,3), F(1,2), F(2,1), F(a,0), F(0,a),

2) F(2,4), F(4,2), F(1,a),

3.2. :

1) 2) 3)

4) 5) 6)

7)

 

3.3. :

1) z=xy; 2) z=y-x2; 3) z=

4) z=ln(x2+y2); 5) z=

1- :

3.4. z=x2-2xy-5y3. 3.5. z=2x3+3x2y-y+5.

3.6. z= e . 3.7. z=ln(x2+y2).

3.8. z= . 3.9. z= .

3.10. z= xy. 3.11. z=x2exy.

3.12. z= arctg(). 3.13. z= arcsin .

2- :

3.14. z= x2-2xy+5y2. 3.15. z= .

3.16. z= . 3.17. z= ln(x2-y2).

3.18. 3- :

1) z=2x3+xy2-y3+y2-x; 2) z= .

3.19. grad z(x,y) :

1) 2)

3) ; 4)

 

3.20. grad z (1;2) :

1) z=4-x2-y2; 2) z=x2-y;

3) z=2x+y-3; 4) z= .

:

3.21. z= 3x2 +xy+2y2+4x-7y+15.

3.22. z= -x2+2xy-2y2 +2x+20.

3.23. z= 5x2 +2xy - y2-4x-8y+10.

3.24. z= x3 +8y3 -6xy +1.

3.25. z= 2x3 -xy2 +5x2+y2.

3.26. z= .

: [1; 2; 6; 7; 9]

- :[5]


2. .
.

4.

.

4.1. , :

 

:

:

.

4.19. :

4. 20. S5 , [1;2] . .

4.21.

:

4.22. 4.23.

4.24. 4.25.

4.26. 4.27.

, :

4.28. = ex, =0, =1, =0.

4.29. = x2+5x+6, =-1, =2, =0.

4.30. = -x2+2x+3, =0.

4.31. =x7, =2, =0.

4.32. = ln x, =e, =0.

4.33. = sin x, =0, .

, , :

4.34. = 4-x2, =0, =0, , : 1) ; 2) .

4.35. = ex, x=0, x=1, =0 : 1) ; 2) .

4.36. = x2+1, =0, =1, x=2 : 1) ; 2) .

 

:

4.37.

4.38. 4.39.

4.40. 4.41. 4.42.

 

: [1; 2; 6; 7; 9]

- :[5]

5.

.

1- .

5.1. , = .

5.2. ,

5.3.

5.4.

:

5. 1-

:

: [1; 2; 6; 7; 9]

- : [2; 5]

 

6.

. .





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