Question

Which of the following is a sinusoid?

Answer 1

A. \[x^2+y^2=1\]
B. \[\frac{ x^2 }{ 3 }+\frac{ y^2 }{ 6 }=1\]
C. \[y=\sqrt[3]{x}\]
D. \[y=\cos (x)-2\]

Answer 2

Is it D?

Answer 3

the first one is

Answer 4

the second one is:

Answer 5

the third one is somthing like that:

Answer 6

the last one is https://www.wolframalpha.com/input/?i=y%3Dcos%28x%29%E2%88%922

Answer 7

so we have graphs of a circle, ellipse, roots and . .

Answer 8

So D is the sinusoid?

Answer 9

sure , cos and sin represents functions of wave form or sinusoidal form

Answer 10

;)