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Mathematics 20 Online
OpenStudy (anonymous):

Can someone check what is wrong with my Trig Function. Question is attached file

OpenStudy (anonymous):

OpenStudy (anonymous):

What i got was y=4.5 sin pi/12(x-16)+20.2 What the book got is y=4.5cos (pi/12)x+20.2 I checked Desmos and my Function is perfectly accurate with the graph given vs the book answer.

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