Mathematics 170: Ideas in Mathematics
Homework 7
1. (This is a repeat of problem 7 on HW 6.) We saw how to build cubes in all dimensions;
how about triangles? A 0-dimensional triangle is just a point.
Mathematics 170: Ideas in Mathematics
Midterm exam solutions
Here are solutions to the exam.
1. Consider an equilateral triangle with side length 1. Let there be 10 points inside the
triangle. Is it p
Mathematics 170: Ideas in Mathematics
Midterm study guide
The midterm exam is on Thursday, June 11, from 4:20 to 5:55 pm. I plan to start and
end promptly.
There will be about ten questions. As you mi
Mathematics 170: Ideas in Mathematics
Homework 8
This assignment is due Wednesday, July 1, 2009, at the beginning of class. Please hand
the homework in in class. If you cant make it to class, place it
Mathematics 170: Ideas in Mathematics
Homework 8
This assignment is due Wednesday, July 1, 2009, at the beginning of class. Please hand
the homework in in class. If you cant make it to class, place it
Mathematics 170: Ideas in Mathematics
Homework 6
This assignment is due Monday, June 22, 2009, at the beginning of class. Please hand
the homework in in class. If you cant make it to class, place it i
Mathematics 170: Ideas in Mathematics
Solutions to Homework 5
1. Suppose you had innitely many people, each one wearing a uniquely numbered
button: 1, 2, 3, 4, 5, . . . Imagine each person has a penny
Mathematics 170: Ideas in Mathematics
Solutions to Homework 4
1(a). Let R = 5.63121212 . . . Then 100R = 563.121212 . . . Subtract these; the dierence is 99R = 557.49. So R = 557.49/99; multiplying th
Mathematics 170: Ideas in Mathematics
Final study guide
The nal exam is on Thursday, July 2, from 4:20 to 5:55 pm. I plan to start and end
promptly.
There will be about ten questions. As you might exp