Question

Which of the following best explains why ( cosleft((2pi)(3)right) neq cosleft((5pi)(3)right) )?

a) Difference in amplitude
b) Difference in frequency
c) Difference in phase
d) Difference in period

Answer 1

The difference between the two cosine functions is in the phase.

Step-by-step explanation:

The correct answer is c) Difference in phase. When comparing the cosine functions cos((2π)(3)) and cos((5π)(3)), the difference lies in the phase of the functions. Phase refers to the horizontal shift of the function, and in this case, the two functions have a phase difference of 2π radians.