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OpenStudy (anonymous):
Which of the following is a sinusoid? A. cos(x)-2 B. xsquare+ysquare=1 C. y=3squarex D. xsquare2/3+ysquare2/6=1
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OpenStudy (anonymous):
a sinusoid is a function that describes a "smooth repetitive oscillation" they will have either a cos or sin or tan function in them so A is the only function which fits the description here
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