2 years ago

Check all that apply. pi/4 is the reference angle for:

1 answer:

ANEK [815]2 years ago

3 0

Answer:

answer is c

I took a quiz with the question and got 100%

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solong [7]

We have been given a function $y=\cos(x)$ . We are asked to find the formula which gives the x-coordinates of the maximum values for given function.

We know that cosine function oscillates between $-1$ and 1 that is minimum value of cosine is $-1$ and maximum value is $1$ .

We also know that $\cos(0)=1$ and after period of cosine is $2\pi$ . This means after every $2\pi$ , we will get to $1$ .

So maximum of cosine is $2\pi n$ , where n is an integer.

Therefore, our required formula is $2\pi n$ , where, $n=0,\pm 1,\pm 2,\pm3,...$

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Sergeu [11.5K]

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Aliun [14]

Answer:

y = 7x - 1 is the answer to the question

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erica [24]

4-3=1 and 5-4= 1 so it's 4

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Rina8888 [55]

Answer:

I hope this helps!

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