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- Mitchi35

I realize that this is probably really simple. But I just don't understand how to do this. Help please? :)
1. Using your calculator, complete the table below for the function y = cos x. Find the corresponding y-values rounded to the nearest thousandth.
I just need help with the fist one.

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- Mitchi35

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- Mitchi35

On the table these are the x values(they are all degrees)and I need to figure out the y value:
x:0 30 60 90 120 150 180 210 240 270 300 330 360
y:
Next table has the same ones but they are all negatives(still degrees) and I need the y value
x: 0 -30 -60 -120 -150 -180 -210 -270 -300 -330 -360
y:

- Shikamaru11

well what kinda relation is given there is it mentioned???? in the table.....

- Mitchi35

They both have the same numbers but one is all positive, and the other are negatives?

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- Shikamaru11

so the x and should be inverse of each other ???/ what's your mind says...

- Shikamaru11

means to say X = 1/Y or Y=1/X ??? is that

- Mitchi35

Oh. Then no I guess.

- Shikamaru11

so do you know the answer??? :)

- Mitchi35

No I don't.... :(

- Shikamaru11

ok wait a minute

- Shikamaru11

X = -Y for the 1st
and -X = +Y :) did you get it now

- Mitchi35

Oh! okay. But how do I figure out the rest of the points? And sorry, I had to run somewhere real quick. :)

- Shikamaru11

oh It's ok ma'm well guess it easily
simple have you seen examples related to it??

- Mitchi35

I have seen some of them I just did't understand them that well by myself. They have some of them in the lesson plan.

- Shikamaru11

@Mitchi35 well sorry for being late so now btw what's your grade ma'm??

- Mitchi35

I have a B-. So if I don't get this, this can bring my grade down to a C. It's worth 50 points.
:(

- Mitchi35

Why do you ask?

- Shikamaru11

oh not this means your class @Mitchi35 :) well don't worry if you're taking pain then you'll gain too

- Mitchi35

Okay thanks. But lol can you help me with this orrrrrrr?...

- Directrix

Use the calculator here.
http://web2.0calc.com/
@Mitchi35

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