Simplification Question: Steps from First Line to Second Line

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SUMMARY

The discussion revolves around the mathematical steps required to transition from the first line of an equation to the second line, specifically focusing on factoring angles and manipulating terms. The participant suggests that after factoring the angle, both sides of the equation were multiplied by \(\frac{mls^2}{(M+m)(I+ml^2)}\). They emphasize the importance of obtaining a common denominator of \(mls^2\) for all terms and collecting terms in \(s^4\), \(s^3\), \(s^2\), and \(s\). The final step involves dividing the numerator and denominator by the coefficient of the \(s^4\) term, denoted as \(q\).

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Homework Statement


Does anyone know what was done to go from the first line to the second?

Homework Equations

The Attempt at a Solution


I don't know what sequence of steps they did after the angle was factored.
I think both sides were then multiplied by [tex]\frac{mls^2}{(M+m)(I+ml^2)}[/tex] or something?
 

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From the original equation get a common denominator, mls2. for all terms. collect terms in s4,s3,s2 and s.
write Φ/U divide the numerator and denominator by the coefficient of the s4 term which is q. DA DA.
 

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