Ok, we'll basically we have two different functions and we're told to set them equal and then algebracially solve them for T.(adsbygoogle = window.adsbygoogle || []).push({});

Here are the functions:

y = 20 sin(pie/15 t) + 25

y = -10cos(2pie/15 t) + 12

It gives a hint and says to use a double-angle forumla and the quadratic forumla to help if needed.

Does anyone have any idea on where to start? I'm totally confused.

Thanks a lot!

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# Homework Help: Need some Trig help, please.

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