Question

Which of the following functions is not a sinusoid?
A. y=x^2
B. None of the above are sinusoids.
C. y=cos x
D. y=sin x

Answer 1

i think A

Answer 2

a is correct answer because when we plot its graph it will be like this

this graph is not sinusoidal

Answer 3

\[y=x^2\]
is an equation of parabola and hence has parabolic graph, not a sinusoidal graph

Answer 4

Thank you!