00:01
Okay, so let's get started with a.
00:05
Here, for example, we can consider r -o -t equals t -coma -t, with t our parameter.
00:17
Now, let's see that indeed this line intersect our plan intersects our plan at a point.
00:25
Well here we're gonna have let's let's find t in such a way this line satisfies this equation so here we're gonna have two t minus 3 t plus 4 t minus 12 equals 0 if and only if 3 t equals 12 if and only if t is equal to 4 so the only point belonging to this plan here.
01:01
Okay, i'm gonna call this plan gamma.
01:05
So the only point belonging to this plan is r of 4.
01:15
Okay, now align which align belonging to this plan.
01:23
Well, here it's easy.
01:26
We can just set, let's see, here we can just set z...