Ox Oy A B ( 2.3). A (a, 0) B (0, b). (2.5)
= , + = 1.
|
.
, , , , , .
|
R1: y = k 1 x + b 1 R2: y = k 2 x + b 2 Ox φ1 φ2 ( 2.4).
2.2. R1 R2 , .
2.4 φ. , 0 ≤ φ ≤ . φ1, φ2 φ: φ = φ2 φ1. :
1) φ = , . . R1 R2 ;
2) 0 ≤ φ < . tg φ = tg (φ2 φ1) = = .
tg φ = , (2.7)
.
1) R1 R2 , φ = 0. tg φ = 0 (2.7) k 2 k 1 = 0 k 2 = k 1. , .
2) R1 R2 , φ = . φ = φ2 φ1 ,
φ2 = + φ1 tg φ2 = tg( + φ1) = ctg φ1 = , . .
k 2 = . (2.8)
, , .
1. ?
2. ?
3. , ? ?
4. ?
5. . ?
6. , + = 0; + = 0; = 0; = 0 ( , , )?
7. ?
8. , ?
9. , ?
10. , ?
11. , ?
12. .
13. .
|
|