ok so try this guy(adsbygoogle = window.adsbygoogle || []).push({});

[tex] \lambda (\frac{dx}{dt})^{2} = (cos{ \alpha} - x)(cos{ \beta} - x) [/tex]

where [tex] x = cos{ \theta} [/tex]

and the solution is

[tex] x = cos{ \alpha} sin^{2}{\frac{t}{2 \lambda}} + cos{ \beta} cos^{2}{\frac{t}{2 \lambda}} [/tex]

please show you're working cos that's where im getting lost

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# Homework Help: This is really irritating

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