create a tabel of values for r and θ for the function r=3/cos(θ) on the interval -pie/2<θ<pie/2 and graph this polar function.



I did so much try... I did half... but does not seems right.. someone can help me soon...

Find your reference points by replacing in values of theta.

First, -\frac{\pi}{2}, 0 then \frac{\pi}{2}. You should also try -\frac{\pi}{4}, -\frac{\pi}{3}, -\frac{\pi}{6}. Afterwards, the positive values.

I know.. I tried it but could not abel make a tabel... help soon

'Pie'? Please, don't do that.:rolleyes:

create a table of values for r and θ for the function r=3/cos(θ) on the interval -pi/2<θ<pi/2 and graph this polar function.

i did so much try. I did half.


What "half" did you try? This is very, very easy. Don't make it harder than it should. All you need is two columns. Under one column, select and enter values of θ. You get to choose them. Unknown008 showed you values to select. Start with negative values, go to positive values. The r column is for values of r that you calculate. Once you have the points, put them on a polar graph.

and \pi is spelled "pi", not "pie".

Oops, I thought it was a simple sec curve :o

Here is the graph of 3sec(t) in polar. It is little more than a vertical line.