Question

Which of the following is a sinusoid?

a. x² + y² = 1
b. y = ³√x
c. y = cos (x) - 2
d. x²/3 + y²³/6 = 1

Answer 1

Option c, y = cos(x) - 2, is a sinusoid.

Step-by-step explanation:

A sinusoid is a mathematical function that represents a waveform. It has a characteristic shape that repeats itself over a certain period of time. Out of the given options, the only one that represents a sinusoid is option c. The function y = cos(x) - 2 represents a cosine wave, which is a type of sinusoid.