There are 5 people in a school, 2 boys and 3girls, two students, are chosen at random, find the probability of choosing two different sexes.
Hello, I present to you an interesting combinatorics question: A group of people from k families should be seated around a round table, with a_{i} number of people in the i family. Each family member must sit together (i.e. no family member can sit between other family members). There are l spaces around the table. There are seats (l>k). How many ways can we seat k number of families around a round table under these conditions.
please . find 2^(11001^(666) ) mod 23 thanks.
hello everyone. Im writing a project on the topic“ Solution of Nonlinear partial differential equation using charpits methods” curently writing chapter 2 but I′m a little bit confused about what ih should include in my theoretical framework. Any ideas?
If z = − (1/2) + ((√3)/2) i Find (z^4 + 2z)∙(z^3 + z) = ?
2^(2024) : 2024 = ... (Remainder = ?)
4 cos^2 x − 4 cos^2 3x cos x + cos^2 3x = 0 [ 0 ; (π/2) ] Find: x = ?