888 Answered Questions for the topic discrete math
Discrete Math
06/10/19
How do I find a counterexample in order to disprove (A∪B) ⊕(C∪D) ⊆ (A∪C) ⊕(B∪D)?
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Discrete Math
06/08/19
How do I take out (n+1) from the recurrence a(n)=(n+1/n)a(n-1)+3n+3?
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Discrete Math
06/07/19
How do I negate ~p <-> q (biconditional statement)?
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Discrete Math
06/07/19
If you follow the Brilliant logic, why is the sum of 360's positive factors equal to 13*15*6 and not 13*15*5?
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Discrete Math
06/06/19
Is the relation $ on set Z+ defined by x$y iff (x+y)/xy >= 0 an equivalence relation?
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Discrete Math
06/05/19
Is the expression a<b>c valid which means b is greater than a and c?
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Discrete Math
06/05/19
In a country, there are 12-, 20-, and 30-florin coins only. What is the minimal amount that can be paid if both sides have many coins of each type?
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Discrete Math
06/05/19
How does one solve (H*4 = M%10, T*4 = A%10, A*4 = T%10, H = M*4)?
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Discrete Math
06/05/19
Is it true that “(x^25)-1 ≡ 0 mod 26”, for every integer from 1 to 25?
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Discrete Math
06/05/19
How can you tell the difference between an M-augmenting path and other M-alternating paths?
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Discrete Math
06/05/19
How do you find the mod of two numbers, like 24 mod 19?
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Discrete Math
06/05/19
How do I find a compound proposition involving the propositional variables p, q, and r, that is true when p and q are true and r is false, but is false otherwise? My answer = ( p /\ q /\ ~r )
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05/10/19
Mathematical Induction proof
How to prove by mathematical Induction?
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Discrete Math
05/03/19
What are the primitive Pythagorean triples if one of x, y, z is 120?
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Discrete Math
04/15/19
Knaves and knights problem
In a Island of knights and knaves..Knights always says the truth knaves always says Lie.You come across three Peaple(X,Y,Z) knave,knight and guest..identify knight,knave and guest..X Says that Z is...
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Discrete Math
04/13/19
Assignement Question
Let R be a relation on a set A.
R is antisymmetric iff Vx,y e A, if x R y and y R x, then x = y.
or, equivalently:
R is antisymmetric iff Vx,y E A, if (x, y) E R and (y, x) E R, then x...
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Discrete Math
04/13/19
Assignment Question
Let R be a relation on a set A.
R is antisymmetric iff Vx,y e A, if x R y and y R x, then x = y.
or, equivalently:
R is antisymmetric iff Vx,y E A, if (x, y) E R and (y, x) E R, then...
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03/19/19
Show that the following set {x∈N | x mod 15 = 11} is countable by establishing a bijection between the set and N
Show that the following set {x∈N | x mod 15 = 11} is countable by establishing a bijection between the set and N
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