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Sirswagger21
  • Member for 4 years, 2 months
  • Last seen more than a week ago
5 votes
1 answer
302 views

Coefficient of $x^7y^6$ in $(xy+x+3y+3)^8$

4 votes
3 answers
246 views

Radius of circle tangent to six tangent parabolas

3 votes
1 answer
747 views

Two elements in the set differ by 3 or more

3 votes
2 answers
964 views

Smallest positive integer solution to $\tan{19x} = \frac{\cos{96} + \sin{96}}{\cos{96} - \sin{96}}$

2 votes
1 answer
125 views

All possible angles of triangle such that the feet of the angle bisectors determine a right angle

2 votes
3 answers
120 views

Sum of six numbers from 1 to 4 divisible by 5 (and generalization.)

1 vote
1 answer
65 views

Clarification on probability problem involving groups and combinations

1 vote
1 answer
781 views

Tournament of 32 teams, highest rank always wins

1 vote
4 answers
246 views

What is $3^{99} \pmod{100}$? [duplicate]

1 vote
2 answers
50 views

Intersection of median and segment between two sides of a triangle

1 vote
1 answer
73 views

Angle of triangle given three altitude vectors adding to $\mathbf{0}$

0 votes
1 answer
596 views

Number Theory proof based on a cubic