Question

One question!

Answer 1

Do they want both the positive and negative maximums? I think they are only asking for the positive maximum values which occur at:
0, pi/2, pi, (3pi)/2, and 2pi.

Answer 2

The minimums would be the maximum negative values that occur:
pi/4, (3pi)/4, (5pi)/4, and (7pi/4)

Answer 3

and how did you get that

Answer 4

Zeros occur at: pi/8, (3pi)/8, (5pi/8), (7pi/8), (9pi/8), (11pi/8), (13pi/8), and (15pi/8)

Answer 5

I got it from the picture. The maximum occurs whenever the waveform reaches "2"
The minimum occurs when the waveform reaches -2. The zeros occur wherever it crosses the 0 line.

The waveform is shown from 0 to 2 pi with increments of 1/4 pi on the scale. By observing the horizontal and the vertical you will be able to answer those questions.

Answer 6

notice there are 4 "boxes" between 0 and pi. that means each step is pi/4
(and 1/2 of a step is pi/8)
now just count.

Answer 7

Yes, and what did you get for the period?

Answer 8

If you look you will see that two complete cycles has occured from 0 to pi and please review my posts, pi/4 is not a maximum but is a minimum.

Answer 9

oh then what is the max.. and is my amplitude and period right

Answer 10

No single point can be both a max and a min. We are saying +2 is maximum value and -2 is minimum value.

Answer 11

oh ok I got that!

Answer 12

My very first post list the points that were "maximum"

Answer 13

which the opposite are min right?

Answer 14

Check each point and verify they are indeed maximum (+2)
The amplitude is 2.

Answer 15

The minimum points (-2) are listed in my second post, please check and verify, I am prone to error at age 74.

Answer 16

No, please go to the top of this and read my very first post. I don't see pi/4, do you?

Answer 17

Yes, so why did you post the above your post second up from here, maybe you are not reading your post.

Answer 18

There are 5 max points
There are 4 min points

Answer 19

Yes if you verify and feel they are correct.

Answer 20

There are 8 zero points.

Answer 21

Go ahead and post it, I still don't know if you got the correct period.

Answer 22

What does your text define period as?

Answer 23

I see a space of pi/2 !

Answer 24

For 4 complete cycles I see only 2pi

Answer 25

so it has a period of 2pi?

Answer 26

But I am not sure how you are defining period. My definition is in units of time, like milliseconds etc.

Answer 27

Period only applies to a single cycle.

Answer 28

I told you what I thought the period was and I did not say 2pi

Answer 29

Period is the length of a SINGLE cycle. and looking at the picture it appears to me to be pi/2........what do you see?

Answer 30

Please post your next problem, so many can provide you assistance.

Answer 31

i posted it above

Answer 32

do you see it

Answer 33

No I mean post it on the left side.