3 votes

Difficulty understanding why dot product is necessary in solving the angle between line and a plane

In your approach you do not have a right-angled triangle: where the purple is the normal vector and orange the direction vector. Here's a link to the desmos So using sin here doesn't make any sense ...
cuppajoeman's user avatar
2 votes

Want to get knowledge about vector

I'll make this a bit more complicated, but bear with me and hopefully it will resolve in the end. Let's define an operator $p$ that takes two arguments, so that $p(a, b)$ is the result of ordinary ...
infinitezero's user avatar
1 vote
Accepted

Confirming the angle between intersecting planes using projections

Firstly there is ambiguity in your notation. It is not clear what $l$ is. At the start you say that it is a line but then you treat it as a vector when you compute a dot product. Also when you compute ...
Digitallis's user avatar
  • 3,850

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