today i will show you relationships amoung functions. some key facts about this is sin x/ cos x = tanx and cos x / sin x = cot x. the steps to follow loosely meaning not exactly is do algebra first then identities- try pythagorean theorm then move everything into sin and cos if its helps, then algebra again. here is an example to see how it works.
EX: csc x - cos x (cot x)
1/sin x - cos x/1 (cos x/sin x)
1/sin x - cos^2 x/sin x
1-cos^2/sin
sin^2/sin x
=sin x
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