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# Title: Leibniz-Handschriften zur Mathematik LH 35, 13, 2c
# Folio 67v, page id 00068199:0134
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X
qu
aa + L
dy. = 7
ulx
du
Aa
XX = sdt
da
yu
aa
Xdx = diZ + dZ = ssdh. 7
ydy v 2
a 2d Z Cv+ 3 - ((a Z. V
voz
saz: Z
du =XC + Zaa
ax u
+ X: a = X
SaziZ
X
y: sa-
d
v
=  V dz -Zdv,: vv
dy: v
fiet X. e
et dy: dx = (4Z: v) D. (vdZ - Zdv, : vv,
et ay: a
seu vaz:, vdz Zdv.
Ergo quod aeq. 2 + ju
a
(dZ
s
sit vdZ:) bdZ -Zdv = dr: ded
fiet ddv = Et
aco
ov 27dZ-272d dv
+ 2 d2 5dZ
b4
5a2 7
et vddr- yb rZdZ ZZ_ dv (= s
2dcod2  y3dZY
C
= Z
= Visdeo
teu
e
dZ deo
vid. - oddr -
2de6Z 2dc0d2
sit, dy: dX
L. a
1
un dr
a et
XX + yy,: aa = du: da Ax
x+y+V, ia
sit XX + yy: aa
Z: a  dx + dy + du,: a  = 2XAx +2ydy; q
ope
X+ y + V. a dy :dx
x eq
as
6. tolli poterunt
X, y, dys  et eut aeq. in qua
aequi. 13, , 5,
dv, y, dx, dZ, Z a