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OpenStudy (daisy.xoxo619):
is f(x)=2cosx+sin3x a sinusoid
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jimthompson5910 (jim_thompson5910):
Graphing the function, I get http://prntscr.com/b79lre which is not a simple sine curve of the form y = k*sin(x). So it's not a sinusoid.
OpenStudy (daisy.xoxo619):
oh thanks, i couldn't get a graph of it for some reason @jim_thompson5910
jimthompson5910 (jim_thompson5910):
you typed in `2cos(x) + sin(3x)` right?
OpenStudy (daisy.xoxo619):
yes in ti84 calculator
jimthompson5910 (jim_thompson5910):
you may need to zoom out my window is xmin = -10 xmax = 10 ymin = -10 ymax = 10
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OpenStudy (daisy.xoxo619):
oh i see thanks
jimthompson5910 (jim_thompson5910):
no problem
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