Hello, I was doing some past papers and I couldn't solve one.(adsbygoogle = window.adsbygoogle || []).push({});

I don't even know where to begin with this question.

[tex]s=asec^{3}\psi - a[/tex]

Show that

[tex]y=atan^{3}\psi[/tex]

If you can tell me where to start from or how to solve the question that would be great.

Thanks

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# Homework Help: Intrinsic Equations

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