giải chi tiết hộ em nhé.
Bài
$8
$: Một lớp học chỉ có các bàn đôi (2 chỗ ngồi). Hỏi lớp này có bao nhiêu học sinh, biết rằng chỉ có thể sắp xếp chỗ ngồi cho học sinh của lớp này theo
$132
$ sơ đồ khác nhau? (Số chỗ ngồi vừa đủ số học sinh).
Tổ hợp
giải chi tiết hộ em nhé.
Bài 8 style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:
"Segoe UI","sans-serif";color:black;letter-spacing:-.15pt;mso-font-width:95%;
mso-no-proof:yes">: Một style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.6pt;mso-no-proof:yes"> lớp style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:.55pt;
mso-no-proof:yes"> học style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:.3pt;mso-no-proof:yes"> chỉ style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.35pt;mso-no-proof:yes"> có style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.55pt;mso-no-proof:yes"> các style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.3pt;mso-no-proof:yes"> bàn style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:.1pt;mso-no-proof:yes"> đôi style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:-.05pt;mso-no-proof:yes"> (2 style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:.35pt;
mso-no-proof:yes"> chỗ style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:.55pt;
mso-no-proof:yes"> ngồi). style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:.45pt;mso-no-proof:yes"> Hỏi style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.1pt;mso-no-proof:yes"> lớp style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:.55pt;
mso-no-proof:yes"> này style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:.1pt;mso-no-proof:yes"> có style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.55pt;mso-no-proof:yes"> bao nhiêu style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:.55pt;
mso-no-proof:yes"> học style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:.3pt;mso-no-proof:yes"> sinh, style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.7pt;mso-no-proof:yes"> biết style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:.6pt;
mso-no-proof:yes"> rằng
class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;
margin-left:17.35pt;margin-bottom:.0001pt;text-indent:21.35pt;line-height:13.9pt;
mso-line-height-rule:exactly">chỉ style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:1.1pt;mso-no-proof:yes"> có style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
mso-font-width:159%;mso-no-proof:yes"> thể style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:1.25pt;
mso-no-proof:yes"> sắp style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;mso-font-width:159%;mso-no-proof:yes"> xếp style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:1.3pt;mso-no-proof:yes"> chỗ style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
mso-font-width:159%;mso-no-proof:yes"> ngồi style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:1.1pt;
mso-no-proof:yes"> cho học style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:1.25pt;mso-no-proof:yes"> sinh của style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
mso-font-width:157%;mso-no-proof:yes"> lớp style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;mso-font-width:159%;
mso-no-proof:yes"> này style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:1.05pt;mso-no-proof:yes"> theo 132 style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:"Times New Roman","serif";
color:black;letter-spacing:-.05pt;mso-no-proof:yes">sơ style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:1.2pt;mso-no-proof:yes"> đồ style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
mso-font-width:159%;mso-no-proof:yes"> khác style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;mso-font-width:157%;
mso-no-proof:yes"> nhau? style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:1.0pt;mso-no-proof:yes"> (Số style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
mso-font-width:159%;mso-no-proof:yes"> chỗ
class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;
margin-left:17.35pt;margin-bottom:.0001pt;text-indent:21.35pt;line-height:13.7pt;
mso-line-height-rule:exactly">ngồi style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:-.05pt;mso-no-proof:yes"> vừa style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.3pt;mso-no-proof:yes"> đủ style="font-size:12.0pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:
Calibri;mso-bidi-font-family:Calibri;color:black;letter-spacing:.35pt;
mso-no-proof:yes"> số style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:
Calibri;color:black;letter-spacing:.55pt;mso-no-proof:yes"> học style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Calibri;
mso-hansi-font-family:Calibri;mso-bidi-font-family:Calibri;color:black;
letter-spacing:.05pt;mso-no-proof:yes"> sinh).
Tổ hợp
giải chi tiết hộ em nhé.
Bài
$8
$: Một lớp học chỉ có các bàn đôi (2 chỗ ngồi). Hỏi lớp này có bao nhiêu học sinh, biết rằng chỉ có thể sắp xếp chỗ ngồi cho học sinh của lớp này theo
$132
$ sơ đồ khác nhau? (Số chỗ ngồi vừa đủ số học sinh).
Tổ hợp