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Answers by rachapalli

0 votes
1
let S={1,2,...,100}.
let S={1,2,...,100}. The number of nonempty subsets A of S such that the product of elements in A is even is
let S={1,2,...,100}. The number of nonempty subsets A of S such that the product of elements in A is even is
2 votes
2
consider the quadratic equation of the form x2+bx+c=0
consider the quadratic equation of the form x2+bx+c=0.The number of such equations that have real roots and coefficients b and c from the set{1,2,3,4,5} (b and c may be equal) is
consider the quadratic equation of the form x2+bx+c=0.The number of such equations that have real roots and coefficients b and c from the set{1,2,3,4,5} (b and c may be e...
2 votes
3
The number of functions f from
The number of functions f from {1,2,...,20} into {1,2,....,20} such that f(k) is a multiple of 3 whenever k is a multiple of 4 is
The number of functions f from {1,2,...,20} into {1,2,....,20} such that f(k) is a multiple of 3 whenever k is a multiple of 4 is
0 votes
4
Discrete Math
Prove or disprove the following: for finite sets A and B, $\overline{(A - B) \cup (B - A)} = A \cap B$ . If the proposition is incorrect, do minimal modifications to the same and prove.
Prove or disprove the following: for finite sets A and B, $\overline{(A - B) \cup (B - A)} = A \cap B$ . If the proposition is incorrect, do minimal modifications to the ...
2 votes
5
The number of ways in which three non-negative integers
The number of ways in which three non-negative integers can be chosen such that is
The number of ways in which three non-negative integers can be chosen such that is
0 votes
6
Need Guidance to work in ISRO
What languages,Scripts should learn to serve best at ISRO and what kind of skills and experience are required to get ISRO/Scientist Post?
What languages,Scripts should learn to serve best at ISRO and what kind of skills and experience are required to get ISRO/Scientist Post?
1 votes
7
Generating function
The coefficient of in the expansion of is
The coefficient of in the expansion of is