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max2010maxim [7]
3 years ago
13

4. The cosine function can be made to have the same values as the sine function for each angle by including a shifted _______ in

the calculation.
A. amplitude
B. wavelength
C. period
D. phase
Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
6 0

Answer: Option D

phase

Step-by-step explanation:

By definition, the cosine function has the following form

y = cos (x - \phi)

Where \phi is known as the phase angle

By definition the sinx function is equal to the cosx function with a phase shift of \frac{\pi}{2}

So if we have the function

y = cos (x - \phi) and we want to transform it into the function y=sin(x) then \phi = \frac{\pi}{2}

Finally

y = cos(x - \frac{\pi}{2})=sin(x)

the answer is the option D

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