For example,
$H_1 : 3X_0 + 2X_3 = 0\\H_2 : −X_0 − X_1 + X_2 = 0\\H_3 : 4X_0 + X_1 −
X_2 + 2X_3 = 0\\H_4 : 5X_0 + 2X_1 − 2X_2 + 2X_3 = 0$
Asked
Active
Viewed 56 times
0
Aiden Chow
- 2,849
- 10
- 32
Íñigo
- 7
-
What book are you using? – Will Jagy Aug 31 '20 at 16:00
-
No book, it's an excercise our teacher told us to do. – Íñigo Aug 31 '20 at 18:40
1 Answers
0
Assuming they have a common line, find the normals of the planes and treat them as if they are a pencil of lines. Compute the cross ratio of those lines (using the usual ratio of sines of angles). Or, for fun, compute a ratio of cross products.
brainjam
- 8,626