# Tagged Questions

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### How to prove that for all 25 ppl and 4 groups, there is a group of at least 6 ppl from the same group?

As of Jun.17, I predict that Brazil, Germany, Italy, and Argentina will make it to the semi-finals of the FIFA World Cup. Suppose you have a group of 25 footballers from those four countries. Prove ...
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### How to make a Truth Table and turn Truth table into A Circuit.

Background I'm a novice student learning some mathematics (Programming background) and I'm currently learning how to construct Truth Tables from Logical Statements and then use that Truth Table to ...
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### (L1* ∩ L2*) = (L1 ∩ L2)* for all languages L1 and L2 over the alpabet Σ={A,B} Is it true or false and why?

plz answer me Determine whether each of the following statements is true or false. If a statement is false, give a counterexample..... 1- $(L_{1}^{*} \cap L_{2}^{*}) = (L_{1} \cap L_{2})^{*}$ for ...
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### Detecting ray cross after hit on a convex object

I have a hw question im struggling to solve - Any guidance will be appreciated.
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### Homogeneous Arrays

I have this problem for homework and was wondering if anyone could help me out with it:
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### Checking Boolean Algebra work - Simplification

I am currently working on an assignment for a CE class I am taking, and I wanted to know if I have been simplifying these equations correctly. I'm supposed to reduce them to a sum of products. 1) ...
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### Minimum queens to reach $8 \times 8$ squares as a graph problem

A homework problem asks What is the minimum number of queens to reach all squares on a $8 \times 8$ chess board? We are expected to solve this by somehow casting the problem as a graph problem ...
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