Page 484 - index
P. 484
– x1 l GI 4 ql 2 .
7A
ɛ) G II ³1 x 2§¨ 8 ql qx ¸·dx 4ql 2 G II ql 2 ©¨¨§ 4 4x2 x 2 ¸·¸¹ - ɛԝɥ ɤɜɚɞɪɚɬ
0© 7 ¹ 7EA EA 7 7l 2
EA
4l 2
ɩɚɪɚɛɨɥɚ. Ɉɧɵԙ ɷɩɸɪɚɫɵɧ ɬԝɪԑɵɡɭ ԛɲɿɧ ɮɭɧɤɰɢɹɧɵԙ, ɤɟɦ ɞɟɝɟɧɞɟ ԛɲ
ɧԛɤɬɟɫɿɧɿԙ ɦԥɧɿɧ ɬɚɛɭ ɤɟɪɟɤ ( 0 d x2 d 2l ).
– x2 0 G II 4 ql 2 ;
EA
7
– x2 2l G II 5 ql 2 .
EA
7
Ԛɲɿɧɲɿ ɧԛɤɬɟ ɪɟɬɿɧɞɟ, ɨɫɵ ɚɪɚɥɵԕɬɚԑɵ ɨɪɵɧ ɚɭɵɫɬɵɪɭɞɵԙ ɷɤɫɬɪɟɦɚɥ
ɦԥɧɿɧ ɚɧɵԕɬɚɣɦɵɡ. Ɉɥ ԛɲɿɧ:
– dG II ql 2 §¨ 4 2x2 ¸· 0 x0 8l G ýêñ 0,897 ql 2 .
dx2 EA © 7l 4l 2 ¹ 7
EA
ɛ) G III ql 2 ¨§ 5 6x3 ¸· , ɛԝɥ ɚɪɚɥɵԕɬɚ 0d x3 dl.
7EA © l ¹
– x3 0 G III 5 ql 2 ;
EA
7
– x3 l G III 1 ql 2 .
EA
7
ɜ) G IV ql 2 ¨§ x4 1·¸ , ɛԝɥ ɚɪɚɥɵԕɬɚ 0 d x4 dl.
7A © l ¹
– x4
– x3 0 G IV 1 ql 2 ;
EA
7
l G IV 0 .
Ɉɪɵɧ ɚɭɵɫɬɵɪɭɞɵԙ ɷɩɸɪɚɫɵ 48 ɝ-ɫɭɪɟɬɿɧɞɟ ɤԧɪɫɟɬɿɥɝɟɧ.
§7. ɋɬɚɬɢɤɚɥɵԕ ɚɧɵԕɬɚɥɦɚɣɬɵɧ ɬɨɩɫɚɥɵ ɫɵɪɵԕɬɚɪ ɠԛɣɟɫɿ
Ɍɿɪɟɤ ɪɟɚɤɰɢɹɥɚɪɵɧ ɠԥɧɟ ɷɥɟɦɟɧɬɬɟɪɿɧɞɟɝɿ ɿɲɤɿ ɤԛɲɬɟɪɞɿ ɚɧɵɬɚɭԑɚ
ɫɬɚɬɢɤɚɧɵԙ ɬɟԙɞɟɭɥɟɪɿ ɠɟɬɤɿɥɿɤɫɿɡ ɛɨɥɫɚ, ɨɥ ɫɬɚɬɢɤɚɥɵԕ ɚɧɵԕɬɚɥɦɚɣɬɵɧ
ɤɨɧɫɬɪɭɤɰɢɹ ɞɟɩ ɚɬɚɥɚɬɵɧɵɧ ɠɨԑɚɪɵɞɚ ɚɣɬԕɚɧɛɵɡ. Ɉɫɵɧɞɚɣ ɫɵɪɵԕɬɚɪ
ɠԛɣɟɫɿɧɟ (ɤɨɧɫɬɪɭɤɰɢɹɥɚɪԑɚ) ɛɿɪɧɟɲɟ ɦɵɫɚɥɞɚɪ ԕɚɪɚɫɬɵɪɚɣɵԕ.
7.1. Ԛɲ ɫɵɪɵԕɬɚɧ ɬԝɪɚɬɵɧ ɠԛɣɟɧiԙ, ɷɥɟɦɟɧɬɬɟɪiɧɞɟɝi ɤɟɪɧɟɭɥɟɪɞi ɬɚɛɭ
ɤɟɪɟɤ (49 ɚ-ɫɭɪɟɬ). Ɉɥ ԛɲiɧ ɚɥɞɵɦɟɧ ɫɵɪɵԕɬɚɪɞɚԑɵ iɲɤi ɤԛɲɬɟɪɞi ɬɚɛɚɦɵɡ.
Ԕɢɦɚɥɚɪ ɬԥɫiɥi ɛɨɣɵɧɲɚ, ɨɣɲɚ I-I ɫɵɡɵԑɵɦɟɧ ɠԛɣɟɧi ɟɤiɝɟ ɛԧɥɟɦiɡ. ɋɨɥ ɠɚԕ
482
