Все публикации

0:11:53

Hyperbola Foci (Focal Points), Ellipses vs. Hyperbolas (Conic Sections / Precalculus / Lesson 11)

0:07:44

Vertical Hyperbolas (and the Transverse Axis) (Precalculus / Conic Sections / Lesson 10)

0:11:31

Horizontal Hyperbolas, Asymptotes (Precalculus / Conic Sections / Lesson 9)

0:17:22

The Concept of Eccentricity (Precalculus / Conic Sections / Lesson 8)

0:11:50

The Focal Points (Foci) of an Ellipse (Precalculus / Conic Sections / Lesson 7)

0:08:28

Ellipses as Stretched Circles (Precalculus / Conic Sections / Lesson 6)

0:14:11

Parabola Form Conversion (Precalculus, Conic Sections, Lesson 5)

0:10:05

Parabola Focal Width / Latus Rectum and Intercepts (Precalculus / Conic Sections / Lesson 4)

0:10:19

Shifted and Horizontal Parabolas (Precalculus, Conic Sections, Lesson 3)

0:13:56

Parabola Focus/Directrix Definition and Formula (Precalculus, Conic Sections, Lesson 2)

0:07:31

An Exploratory Introduction to the Conic Sections (Precalculus, Conic Sections, Lesson 1)

0:05:13

Continuous and Uniformly Continuous Functions

0:02:30

Why Angle-Side-Side Doesn't Work (And Sometimes Does!)

0:10:29

Euclid's Division Lemma Proof

0:06:09

Archimedes' Proof that the Area of a Circle is πr^2

0:05:13

Challenging But Accessible Math Problems: Grouping Weights

0:04:21

Deriving the Pythagorean Identities (Trigonometry)

0:02:56

Where is Sine/Cosine Positive or Negative?

0:03:56

Trigonometric Functions and the Unit Circle - Example (Cosine of 120 Degrees)

0:05:26

Trigonometric Functions and the Unit Circle - Conceptual Introduction

0:05:22

Cosine of the Difference of Two Angles (Proof)

0:05:42

The Law of Cosines - Proof

0:04:12

Combinations (vs. Permutations)

0:06:38

Permutations