Plotting equation in mathematica? Any Ideas?

[abe_cooldude]

Hi, I am trying to graph

(x+(1/√(1+cos(x)²)))

in mathematica, and i used

Plot[x + (1/(sqrt (1 + cos (x)^2))), {x, 0, 9}]

but I am not getting an output graph.

Any ideas?!

Plot[x + 1/Sqrt[1 + Cos x^2], {x, 0, 9}, PlotRange -> {-10, 10}]

I found few errors, and above is what I got, it's a progress, but now I get this error:

Plot::exclul: {Im[Cos x^2]-0} must be a list of equalities or \
real-valued functions.

 

[daudaudaudau]

Try pressing F1. There are a ton of examples in the help file.

 

[slider142]

Hi, I am trying to graph

(x+(1/√(1+cos(x)²)))

in mathematica, and i used

Plot[x + (1/(sqrt (1 + cos (x)^2))), {x, 0, 9}]

but I am not getting an output graph.

Any ideas?!

Plot[x + 1/Sqrt[1 + Cos x^2], {x, 0, 9}, PlotRange -> {-10, 10}]

I found few errors, and above is what I got, it's a progress, but now I get this error:

Plot::exclul: {Im[Cos x^2]-0} must be a list of equalities or \
real-valued functions.

Functions and their arguments must be clearly delineated in Mathematica. It is not clear what the argument of Cos is in the above script. The following generates the graph:

Plot[x + 1/Sqrt[1 + Cos[x^2]], {x, 0, 9}, PlotRange -> {-10, 10}]