ВУЗ:
Составители:
Рубрика:
Ë} ÒÒ}ÈÁË ¯©m©° Ë®äÈËäÈÒ}Òlnj
ÙkÓÈãÒÒ˰}ȫ˺ä˯ҫÒãÒÓË®ÓÈ«Èã˯ȵ
äÓºmkp
{ÈÓÓºä°ãÈË
∆=− <10
Ⱥ㹺mº¯ºÈº°Ë®°Ò°Ëä©}ºº¯ÒÓÈ
α
=
1
2
2arctg
°Ò¹ãÒÓÒÒÙvºm¹ÈÈÒ˹¯«ä©Ëµ
¯ÈmÓËÓÒË
0
2
=
′
y
º¹¯ËËã«Ë ¹¯«ä
′
=y 0
m°Ò°ËäË}ºº¯ÒÓÈ
},,{
21
→→
′′′
eeO
ºãÈ˰«ÒÏÒ¹ÈãÒÓÒÒ
°
¹¯ËËãÓ©ä¹Ë¯Ë²ººä¹¯Ò
0+→b
°Ò¹ãÒÓÒÒÙº}Òµ
¯ÈmÓËÓÒË
0
2
2
2
2
=
′
+
′
b
y
a
x
º¹¯ËËã«Ë ËÒÓ°mËÓÓº}ÓÈÈ㺠}ºº¯ÒÓÈ
°Ò°Ëä©
},,{
21
→→
′′′
eeO
°Ò¹ãÒÓÒÒÙ°©ËäÓºÎ˰mȵ
¯ÈmÓËÓÒ«
1
2
2
2
2
−=
′
+
′
b
y
a
x
Ò
22
ay −=
′
ÓË º¹¯ËËã« ÓÈ ¹ãº°}º°Ò
},,{
21
→→
′′′
eeO
ÓÒ}È}Ò²ºË}|ÓÈ}ºªÒ°ãÈÒÒÓºÈÒäËÓ Ùutquuqsqtq¹uqµ
¯wããÒ¹°Ò˺°mº®°mÈ
|¹¯ËËãËÓÒË
¯
z¯ÒmÈ« ¯ÈmÓËÓÒË }ºº¯º® m ÓË}ºº¯º® º¯ºÓº¯äÒ¯ºmÈÓÓº® °Ò°ËäË
}ºº¯ÒÓÈÒäËËmÒ
0;1
2
2
2
2
>≥=+ ba
b
y
a
x
ÓÈÏ©mÈ˰«ëssqwxvu
|¹¯ËËãËÓÒË
¯
񡋼
a
ba
22
−
=
ε
ÓÈÏ©mÈ˰«ërx|ntzéqxqznzvuªããÒ¹°È
º}Ò
0
a
ε
±
ÓÈÏ©mȰ«{vryxjuqªããÒ¹°È
Ë } Ò Ò } È Á Ë ¯ © m © ° Ë ® ä È Ë ä È Ò } Ò l n j
ÙkÓÈãÒÒ˰}ȫ˺ä˯ҫÒãÒÓË®ÓÈ«Èã˯ȵäÓºmkp
1
{ÈÓÓºä°ãÈË ∆ = −1 < 0 Ⱥ㹺mº¯ºÈº°Ë®°Ò°Ëä©}ºº¯ÒÓÈ α = arctg 2
2
°Ò¹ãÒÓÒÒÙvºm¹ÈÈ Ò˹¯«ä©Ëµ
→ →
¯ÈmÓËÓÒË y ′ 2 = 0 º¹¯ËËã«Ë ¹¯«ä y ′ = 0 m °Ò°ËäË }ºº¯ÒÓÈ {O ′, e1′ , e ′2 }
ºãÈ˰«ÒÏÒ¹ÈãÒÓÒÒ°¹¯ËËã Ó©ä¹Ë¯Ë²ººä¹¯Ò b → +0
°Ò¹ãÒÓÒÒÙº}Òµ
x′2 y′2
¯ÈmÓËÓÒË + = 0 º¹¯ËËã«Ë ËÒÓ°mËÓÓ º} ÓÈÈ㺠}ºº¯ÒÓÈ
a2 b2
→ →
°Ò°Ëä© {O ′, e1′ , e ′2 }
°Ò¹ãÒÓÒÒÙ°©ËäÓºÎ˰mȵ
x′2 y′2 → →
¯ÈmÓËÓÒ« + = −1 Ò y ′2 = −a 2 ÓË º¹¯ËËã« ÓÈ ¹ãº°}º°Ò {O ′, e1′ , e′2 }
a2 b2
ÓÒ}È}Ò²ºË}|ÓÈ}ºªÒ°ãÈÒÒÓºÈÒäËÓ Ùutquuqsqtq¹uqµ
¯wããÒ¹°Ò˺°mº®°mÈ
|¹¯ËËãËÓÒË z¯ÒmÈ« ¯ÈmÓËÓÒË }ºº¯º® m ÓË}ºº¯º® º¯ºÓº¯äÒ¯ºmÈÓÓº® °Ò°ËäË
¯
x2 y2
}ºº¯ÒÓÈÒäËËmÒ + = 1 ; a ≥ b > 0 ÓÈÏ©mÈ˰«ëssqwxvu
a2 b2
|¹¯ËËãËÓÒË
¯ a2 − b2
Ұ㺠ε = ÓÈÏ©mÈ˰«ërx|ntzéqxqznzvuªããÒ¹°È
a
± εa
º}Ò ÓÈÏ©mÈ °«{vryxjuqªããÒ¹°È
0
Страницы
- « первая
- ‹ предыдущая
- …
- 296
- 297
- 298
- 299
- 300
- …
- следующая ›
- последняя »
