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weird trig question (1 Viewer)

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abdog

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cos theta = 0.64 and 0<theta<2pi. How do you solve this?
 
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abdog

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cos theta = 0.64 and 0<theta<2pi. How do you solve this?
 
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Praer

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are we suppose to find theta?
then we need more info or we'll end up with 2 values
 
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