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MathsAreFun
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MathsAreFun
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41
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12
5 Questions
12 Answers
0
658
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+41
Please help...Thank you.
In how many ways can we place anywhere from to indistinguishable checkers on a checkerboard (no more than one checker per square), such that no row or column contains exactly checker?
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MathsAreFun
13.04.2020
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457
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Counting please help
How many subsets of have the property that there are at least two elements and the sum of the two largest elements is 13?
MathsAreFun
13.04.2020
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Probability With Sets
Let . Three subsets of are chosen at random.
(a) Find the probability that
(b) Find the probability that .
Thank you!
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MathsAreFun
01.04.2020
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Geometry/Probability Problem
In triangle , we have , , and .
Let be a point chosen uniformly at random inside . Extend ray to hit side at . What is the probability that ?
Thank you!!!
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MathsAreFun
01.04.2020
-3
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13
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i would like to understand how to solve, so that I can solve other problems on my own.
A regular dodecagon P_1, P_2, P_3, ... P_12 is inscribed in a circle with radius 1. Compute
(P_1 P_2)^2 + (P_1 P_3)^2 + ... + (P_11 P_12)^2. (The sum includes all terms of the form (P_i P_j)^2, where 1≤ i <
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MathsAreFun
30.03.2020
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