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Ivan's user avatar
Ivan's user avatar
Ivan
  • Member for 7 years, 3 months
  • Last seen more than 2 years ago
0 votes
0 answers
130 views

ODE Applications: Salt water problems

3 votes
1 answer
443 views

Is there a mathematical way to measure complexity?

2 votes
1 answer
664 views

Is every sine and cosine orthogonal to every other?

1 vote
1 answer
98 views

What is the sharpest possible matrix?

0 votes
2 answers
2k views

Infinitely many solutions of a linear system of equations

0 votes
1 answer
61 views

Working out the area of a triangle within another triangle [closed]

1 vote
3 answers
3k views

Find the radius of a circle inscribed in a pendant

2 votes
2 answers
627 views

Cone geometry question

2 votes
1 answer
427 views

Sets/Venn diagrams question

2 votes
2 answers
716 views

Dividing by zero and imaginary numbers