Problem solving a separable differential equation for u

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SUMMARY

The discussion focuses on solving the separable differential equation du/dt = e^(5u + 2t) with the initial condition u(0) = 13. The user initially attempted to take the natural logarithm of both sides but became stuck. A key hint provided suggests using the laws of exponents to separate the equation into manageable parts, specifically splitting e^(5u + 2t) into e^(5u) * e^(2t) for easier integration.

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mesa
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Homework Statement


Solve the separable differential equation for u

du/dt=e^(5u+2t)

Use the following initial condition: u(0)=13

The Attempt at a Solution



Honestly I didn't get very far on this one. I took the natural log of both sides,

ln du/dt = 5u+2t

And now I am stuck. Should I divide both sides first by our e^(5u+2t) instead of taking the ln?
 
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mesa said:

Homework Statement


Solve the separable differential equation for u

du/dt=e^(5u+2t)

Use the following initial condition: u(0)=13

The Attempt at a Solution



Honestly I didn't get very far on this one. I took the natural log of both sides,

ln du/dt = 5u+2t

And now I am stuck. Should I divide both sides first by our e^(5u+2t) instead of taking the ln?

Hint: Use the laws of exponents to split e5u + 2t.
 
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Mark44 said:
Hint: Use the laws of exponents to split e5u + 2t.

Damn it...

Thank you, its been a long night.
 

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