问题:
(1)已知
1
C
m5
-
1
C
m6
=
7
10
C
m7
,求C 8 m;
(2)解方程C 16 x2-x=C 16 5x-5;
(3)计算C 10 0+C 11 1+C 12 2+…+C 100 99.
(1)已知
-
=
,求C 8 m;
(2)解方程C 16 x2-x=C 16 5x-5;
(3)计算C 10 0+C 11 1+C 12 2+…+C 100 99.
1 | ||
|
1 | ||
|
7 | ||
10
|
(2)解方程C 16 x2-x=C 16 5x-5;
(3)计算C 10 0+C 11 1+C 12 2+…+C 100 99.
参考答案: