- , .
, , .
, (L K) . , :
1 L=LA +LB;
2 K = KA +KB.
.
( 9) , .
, , .
.
9
-
- .
. , , :
MRTSLK = MRTS LK = L / K,
MPL/MPK= L / K = const.
, . , , .
10
(MRTxy) .
, .. :
MRTxy = MCx / MCy = x/y.
, , .
11
, , , , .
( ) , :
MRSxy = MRTSxy
,
MRSxy = MRTSxy = MRTxy = x/y= MCx / MCy.
, .