dx stock

dxdx0x
.
dxdy .
DXDLCDX.
(1/sinx)dx ...
dy=Ax+o(x)dxdxx
dx x dxdy. . y=fxxD. .
B=f (A)ABAdxdxdx .
dxxx1 x2 dx dyf (x2)-f (x1) dy/dx f (x)dx dytan.

dxdx0x
.
dxdy .
DXDLCDX.
(1/sinx)dx ...
dy=Ax+o(x)dxdxx
dx x dxdy. . y=fxxD. .
B=f (A)ABAdxdxdx .
dxxx1 x2 dx dyf (x2)-f (x1) dy/dx f (x)dx dytan.
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