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Woland
  • Member for 9 years
  • Last seen more than a month ago
  • Belarus
3 votes
3 answers
75 views

Calculate the sum of the series $\sum_{1\leq a<b<c \\a,b,c\in \mathbb{N}} \frac{1}{2^a 3^b 5^c}$

2 votes
1 answer
117 views

Calculate surface area of flat figure by using double integral and polar coordinates

2 votes
5 answers
230 views

Find expected value of $\frac{1}{1+\xi}$

1 vote
2 answers
57 views

Calculate double integral using Polar coordinate system

1 vote
1 answer
54 views

Calculate area by using double integral

0 votes
1 answer
51 views

Simple question about integration

0 votes
1 answer
220 views

Bernoulli scheme

0 votes
0 answers
51 views

Find probability distribution

0 votes
1 answer
80 views

Independence of two random variables $\xi_1,\xi_2$

0 votes
2 answers
89 views

Task on Bayes' law

0 votes
1 answer
100 views

Task on expected value