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What is k=0 to 28 k^2 (28Ck), where 28Ck is the
number of ways of choosing k items from 28
items?

Read Solution (Total 6)

bcoz k=0 t0 28 then
number of ways of choosing k items from 28 is
28c0+28c1+28c2+.......+28c28=2^28

since:nc0+nc1+....+ncn=2^n
11 years agoHelpfull: Yes(10) No(0)

2^28 ans...
11 years agoHelpfull: Yes(2) No(5)
answer 812*2^26
11 years agoHelpfull: Yes(1) No(2)
2^28 - 1 as we know 2^28 -1
11 years agoHelpfull: Yes(1) No(1)
28*29*2^26 is the rgt ans
11 years agoHelpfull: Yes(1) No(0)
pls explain how it is shashi nath jha
11 years agoHelpfull: Yes(0) No(0)

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