Draw Electric Circuit Graph

[newuser]

I want to draw this function but I have no idea how I can draw it
Vmax*sin(theta)-Vmax*e^pi/2-theate/wR*C
f=60 hz
R=4kiloohm
C=60mikroFarad

[couet]

How many variable do you have ? if you have one use TF1, two TF2 …

[newuser]

I use TF1 because I have one variable but while I was writing code I have error

[Wile_E_Coyote]

TF1 *tf1 = new TF1("tf1", "sin(x)-exp(90.0-x)/62.83", 0.0, 5.0);
tf1->Draw();