Solution for Section 6.6 Question 2
2. a) By Pascal's formula with n = 7 and r = 6:
(
7
)
+
(
7
)
=
(
8
)
=
28.
5
6
6
b) By Pascal's formula with n = 9 and r = 6:
(
9
)
+
(
9
)
=
(
10
)
=
210.
6
5
6
Back to Section 6.6