1. L: , - R3, s , R2, .
2. L . m = .
3. G R3 - . , .
A AB: A=
4. Q=x, P=0 , S G, :
S= . Q=0, P=-y, S S= .
S= .
16. 1. y=ln cos x, .
. : x=x, y=ln cos x, . = = = = = .
16. 2. .
. . s= .
16. 3. , AB: y=x2/2, A(1; 1,5) B(2; 2); =y/x.
.
m = . , ds= , x 1 2, m = = .
16. 4. , : x=at, y=at2/2, z= at3/3; ; .
. m= == = = .
16. 5. , y2= 4- x, x=4, y=1.
. , , ABC, A(), B(4; 1)C(4;0). AC: y2= 4- x, CB: x=4, , BA: y=1, . S= = = 1/3.
, , I= . CB x= 4, dx=0, y 0 1. I= = =4.
16. 6. = {z, -x, y} AB, AB x=acos t; y= bsin t; z=ct; ; A(a;0;0), B(a;0;2 ).
. A= , ={P;Q;R}. , . = = = = = = = +0= = .
. G , , , G.
P Q G. AB (AB , , A , B - ) , u=u(x, y), .. G du= Pdx+Qdy, =P, = Q. AB, , = u(B) u(A).
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P, Q, , G. , , G = .
16. 7. = {y, x} A(1;0) B(-4;3).
. ( = =1), AB. AB AMB, M(1; 3). AM={x=1, }, BM=={y=3, }. = = = =-12.
16. 8. , , , A(-2;-1), B(3;0).
. = . : I= 62.
:
16. 9. ay2= x3, . : 335a/27.
16.10. , . : 5.
16. 11. , : x=tcost, y=tsint, z= t; ; .
: .
16. 12. ,
y= 1- x2, x y 1 =0. : 9/2.
16. 13. , , , A(3;0), B(0;-3).
: 0.
16. 14. = AB , A(1;0), B(0;1), :
1) APB, P(1;1);
2) - ;
3) - .
: 1), 2),3)