Все публикации

0:05:20

Proving the Minkowski Inequality

0:02:26

a/b=ac/bc

0:03:54

Evaluating a Proof of ''1=2''

0:18:11

Proving the Cauchy-Schwartz Inequality

0:08:13

Prove by PMI that for every Natural Number n, 1+2+...+n=n(n+1)/2

0:05:11

Properties of Finite Sums.

0:12:16

Show that it is Impossible to define a Total Ordering on the set of Complex Numbers.

0:06:38

SOA Exam P Problem 6

0:02:37

Prove that x^3+y^3=(x+y)(x^2-xy+y^2)

0:04:46

SOA Exam P Problem 5

0:04:13

Proof of Change of Base Formula for Logarithms

0:02:45

Introduction to Limits of Logarithms

0:04:19

De Morgan's Laws for Families of Sets

0:04:50

Solve for x: log_2(x-6)+log_2(x-4)-log_2x=2

0:02:09

Solve for x: 2|lnx|-6=0

0:02:40

Each set within a family of sets is a subset of that union of the sets within the family of sets.

0:03:42

Proving that the Intersection of Sets within a Family of Sets is a Subset of each Set in the Family.

0:04:52

Proving that AX(B intersection C)=(AXB) intersection (AXC).

0:06:43

Proving a nice property for the cross product of sets.

0:01:26

Prove that for any set A, AX(emptyset)=emptyset.

0:05:08

Prove that AX(B union C)=(AXB) union (AXC).

0:02:44

Prove the other De Morgan's Law for Sets.

0:05:01

Nice Proof of an alternate formula for the area of a triangle.

0:08:35

Nice Proof involving areas of triangles.