Summer Clouds moderators
09/11/2017 at 08:42-
We can do this by using Pascal's triangle. The numbers from the tenth row of the triangle (corresponds to the number in the subsets) is:
1 10 45 120 210 252 210 120 45 10 1
(0) (1) (2) (3) (4) ................................. (9) (10)
Because the question asks about odd number of elements so there are:
\(10+120+252+120+10=512\left(subsets\right)\)
ANSWER: 512 subsets
Selected by MathYouLike -
Phạm Tuấn Đạt 11/11/2017 at 13:26We can do this by using Pascal's triangle. The numbers from the tenth row of the triangle (corresponds to the number in the subsets) is:
1 10 45 120 210 252 210 120 45 10 1
(0) (1) (2) (3) (4) ................................. (9) (10)
Because the question asks about odd number of elements so there are:
10+120+252+120+10=512( subsets)
ANSWER: 512 subsets