Solve the differential equation $\frac{dy}{dx}=\frac{3y^2+4x^2}{xy}$

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Final answer to the problem

$y=\sqrt{\frac{C_7}{x^{2}}-2x^2},\:y=-\sqrt{\frac{C_7}{x^{2}}-2x^2}$
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Step-by-step Solution

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We can identify that the differential equation $\frac{dy}{dx}=\frac{3y^2+4x^2}{xy}$ is homogeneous, since it is written in the standard form $\frac{dy}{dx}=\frac{M(x,y)}{N(x,y)}$, where $M(x,y)$ and $N(x,y)$ are the partial derivatives of a two-variable function $f(x,y)$ and both are homogeneous functions of the same degree

Learn how to solve integration by trigonometric substitution problems step by step online.

$\frac{dy}{dx}=\frac{3y^2+4x^2}{xy}$

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Learn how to solve integration by trigonometric substitution problems step by step online. Solve the differential equation dy/dx=(3y^2+4x^2)/(xy). We can identify that the differential equation \frac{dy}{dx}=\frac{3y^2+4x^2}{xy} is homogeneous, since it is written in the standard form \frac{dy}{dx}=\frac{M(x,y)}{N(x,y)}, where M(x,y) and N(x,y) are the partial derivatives of a two-variable function f(x,y) and both are homogeneous functions of the same degree. Use the substitution: y=ux. Expand and simplify. Integrate both sides of the differential equation, the left side with respect to u, and the right side with respect to x.

Final answer to the problem

$y=\sqrt{\frac{C_7}{x^{2}}-2x^2},\:y=-\sqrt{\frac{C_7}{x^{2}}-2x^2}$

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Function Plot

Plotting: $\frac{dy}{dx}+\frac{-3y^2-4x^2}{xy}$

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7
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9
0
a
b
c
d
f
g
m
n
u
v
w
x
y
z
.
(◻)
+
-
×
◻/◻
/
÷
2

e
π
ln
log
log
lim
d/dx
Dx
|◻|
θ
=
>
<
>=
<=
sin
cos
tan
cot
sec
csc

asin
acos
atan
acot
asec
acsc

sinh
cosh
tanh
coth
sech
csch

asinh
acosh
atanh
acoth
asech
acsch

How to improve your answer:

Main Topic: Integration by Trigonometric Substitution

Trigonometric substitution is the substitution of trigonometric functions for other expressions. One may use the trigonometric identities to simplify certain integrals containing radical expressions.

Used Formulas

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