Pre-Calculus

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I need to understand how...

I need to understand how to rearrange & resolve equations that include sin & cos, but I can't find a clear note of these rules in my course textbooks.

Using the following example can you please define the rules e.g. what is (cos x) X (cos x)

Given the equation (Pcos x + Tsin x)/cos x = (-Psin x + Tcos x)/sin x

how do I rearrange & resolve the trig content to find the value of T/P

Using the following example can you please define the rules e.g. what is (cos x) X (cos x)

Given the equation (Pcos x + Tsin x)/cos x = (-Psin x + Tcos x)/sin x

how do I rearrange & resolve the trig content to find the value of T/P

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