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2 years ago

Enter a number that correctly completes the following statement

Mathematics

2 answers:

Veseljchak [2.6K]2 years ago

4 0

Answer:

Step-by-step explanation:

erik [133]2 years ago

3 0

17 Units away from the origin? Moving (12,5) left 12 times, then down 5

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What is the equation of the following line written in slope-intercept from??

Gemiola [76]

X=2
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2 years ago

The general solution of 2 y ln(x)y' = (y^2 + 4)/x is

Sav [38]

Replace $y'$ with $\dfrac{\mathrm dy}{\mathrm dx}$ to see that this ODE is separable:

$2y\ln x\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{y^2+4}x\implies\dfrac{2y}{y^2+4}\,\mathrm dy=\dfrac{\mathrm dx}{x\ln x}$

Integrate both sides; on the left, set $u=y^2+4$ so that $\mathrm du=2y\,\mathrm dy$ ; on the right, set $v=\ln x$ so that $\mathrm dv=\dfrac{\mathrm dx}x$ . Then

$\displaystyle\int\frac{2y}{y^2+4}\,\mathrm dy=\int\dfrac{\mathrm dx}{x\ln x}\iff\int\frac{\mathrm du}u=\int\dfrac{\mathrm dv}v$

$\implies\ln|u|=\ln|v|+C$

$\implies\ln(y^2+4)=\ln|\ln x|+C$

$\implies y^2+4=e^{\ln|\ln x|+C}$

$\implies y^2=C|\ln x|-4$

$\implies y=\pm\sqrt{C|\ln x|-4}$

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2 years ago

What is 2/8+1/6 in the simplest form.

tatuchka [14]

Answer:

20/48

Step-by-step explanation:

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2 years ago

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Tasya [4]

Step-by-step explanation:

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2 years ago

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