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. <br />
d y = 3x<br />
2 y<br />
dx<br />
.<br />
dy<br />
: <br />
2<br />
= 3x<br />
dx<br />
: <br />
y <br />
dy<br />
∫<br />
2<br />
= ∫3<br />
x dx<br />
, <br />
y<br />
.<br />
3 <br />
ln y = x + C<br />
<br />
y<br />
= ±<br />
e x 3<br />
+ C1<br />
1<br />
C<br />
C = ± e 1<br />
y = C e<br />
x<br />
3<br />
1 x<br />
= ± e C e<br />
3<br />
ln<br />
y<br />
=<br />
x<br />
( C )<br />
( y = 0 )<br />
3 +<br />
ln<br />
C