could use some calc help....

[zixxer]

okay most of this junk is really easy... can be done on the calculator (and my teacher lets us use calcs..) (I have to sketch two periods (basically I look at table on my calc and make it)
and label all important features )ex:

y=4sin(2x-PIE)
I can use my calc and use the table function and see where it crosses at X and Y etc... no big deal

y=sec(2x)+1
ok. sec=1/cos. So, I type in y=(1/cos(2x))+1
and the graph just plain out doesn't look right.

y=arccos x
I type in y=arccos x and get nothing. no graph at all. I have no clue.

 

[maziwanka]

what interval are you looking at

 

[YetioDoom]

What do you need to do? Draw a graph? find roots? find min/max?

 

[zixxer]

I have to sketch two periods (basically I look at table on my calc and make it)
and label all important features

 

[zixxer]

ok one problem is that I had no clue my calc has to be in radians for the graphs (but in degrees for the calculations)


now they look more normal.