dangarbo10's channel
Loading...
375
subscribers
234,113
video views
Uploaded videos
1-10 of 66-
Proof of Side Splitter Theorem
dangarbo10
Here is a proof of the side splitter theorem and an example of how to use it. It helps us prove the triangle angle bisector theorem and can make some similarity problems e...
-
Triangle angle bisector theorem proof
dangarbo10
This is a proof of the triangle angle bisector theorem with an example of how it works. It relies on the side splitter theorem so if you haven't seen my proof of that you ...
-
Quadratic equation from two points
dangarbo10
1 views
This tutorial shows how to find the vertex form quadratic equation when you are given two points. This method also works if you are given a graph and the vertex is a latti...
-
Solving systems using elimination
dangarbo10
15 views
Solve systems of two linear equations using elimination. It is pretty sweet. You should watch and learn and like it and subscribe and smile and learn lots of math and be ...
-
Solving systems using substitution
dangarbo10
8 views
Here we solve systems of two linear equations using substitution. This is some important stuff - you really ought to learn it well. You will use this is all of your futur...
-
Simplifying a trigonometric expression
dangarbo10
10 views
Simplifying a trig expression using the Trigonometric Pythagorean Theorem. If you need help with others send them my way!!
-
Proof by induction
dangarbo10
24 views
A divisibility proof using mathematical induction. If you have other induction problems that you need help with just shoot me an email - I would be glad to help.
-
Equations of perpendicular lines.
dangarbo10
24 views
A geometric argument for why slopes of perpendicular lines are opposite reciprocals. With an example at the end. Algebra 4 life!
-
Equations of parallel lines
dangarbo10
59 views
A few examples of how to write equations of lines parallel to a given line. Here the focus is writing in slope-intercept form, but point-slope form is a bit less strenuous...
-
Trapezoidal Rule
dangarbo10
23 views
The trapezoidal rule gives us a way to better approximate definite integrals. Here I give a brief explanation of why it works, and then an example follows.
Play all(66)