The problem stated is to plot the projection onto the xy and xz planes of r(t) = <t cos(t), t sin(t), t>. Right now I am just trying to graph the curve in 3 space but mathematica either refuses to show a graph or shows one empty. This is the code I typed:
Plot3D[{Cos[t]* t, Sin[t]* t, t}, {x, -100, 100}, {y, -100, 100}]
I believe the Projection code would look like for the x plane:
Projection[{t*Cos[t], t*Sin[t], t}, {1, 0, 0}]
but obviously neither of those are working. Any help is very much appreciated!
