What exactly is your difficulty? Are you saying that you have never taken trigonometry and don't know the meanings of the words? Or do you just not want to try anything?
Write a function whose parent is y=sin x and whose graph has amplitude 3/4 and period pi
Give a general solution to cos^2 theta=3/4
What are the period, amplitude, and shifts of the graph y= 3 cos (2x-pi) +5 from y=cos x
Thank you!!
Excuse me for actually thinking the math help forum was intended for finding assistance with my homework assignments I struggle with. Rather than insulting the fact that I have a question and accusing me of being a lazy, perhaps you could actually guide me in finding the correct answer. Thank you for the kind assistance you have provided to be.
Oh, thank you. Sorry this is my first post! My teacher helped me with those problems but I have another question and was wondering if someone could help me with it. There is a cosine graph with three points on it (0,30) (6,83) (12,30) and I need to write a cosine function. So far, I have y=56.5 cos (12/2pix- ?) but I have no idea how to find the phase shift to complete this function based on the given graph. There is no feature like this on a Ti-Nspire CAS.
Also, I need to find the inverse sine of 1/2 and the inverse tangent the square root of 3. So I am pretty sure this relates back to ratios in a 30 60 90 triangle but I don't know what to do with these numbers to write these functions in terms of pi. Do I need to multiply by each ratio but how do I know what side is which?
i hope I asked my question correctly this time and somebody can give me some help! Thank you!!
Your general cosine function is of the form . The standard method would be to substitute four points to give four equations to solve in your CAS, but you only have been given three. So you must have more information.
I see that you have the points (0, 30) and (12, 30). Is this just one cycle of your graph or have there been more cycles?
Please do not bump your posts. (See the forum rules below.)
It's a temperature graph so it is cyclic. By inspection you can see that if you have the point (6, 83) you will also have the point (18, 83). Do you see why?
Also, tell us if the form or the more "Physics-y" one . The first is a "curve-fitting" task, whereas the second is more of a "physical" one.
-Dan