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evablogger [386]
3 years ago
13

I need help someone​

Mathematics
1 answer:
allochka39001 [22]3 years ago
7 0

Answer:

There is no correlation.

Step-by-step explanation:

The points are far spread and does not give any correlation.

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(1+x^2)dy/dx+2xy-4x^2=0 bu using Bernoulli's Equation
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Not of Bernoulli type, but still linear.

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There's no need to find an integrating factor, since the left hand side already represents a derivative:

\dfrac{\mathrm d}{\mathrm dx}[(1+x^2)y]=(1+x^2)\dfrac{\mathrm dy}{\mathrm dx}+2xy

So, you have

\dfrac{\mathrm d}{\mathrm dx}[(1+x^2)y]=4x^2

and integrating both sides with respect to x yields

(1+x^2)y=\displaystyle\int4x^2\,\mathrm dx
(1+x^2)y=\dfrac43x^3+C
y=\dfrac{4x^3}{3(1+x^2)}+\dfrac C{1+x^2}
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