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trigonometry

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mes

4.2 K

Problems Plus 3: Line and Surface of Two Intersecting Planes

In this video I determine the symmetric equations of a line at the intersection of two planes. I then find out that when the equations o...

dkmathstats

100.90

An Introduction To Trigonometric Ratios & SOH CAH TOA

Hi there. In this math post I provide an introduction to trigonometric ratios of right angled triangles. I also cover the useful memory a...

mes

4.2 K

Example 2: Approximating sin(x) with Taylor Polynomials and Calculating its Error

In this video I go over a very in-depth video exploring the trigonometric sine function, its Taylor polynomials approximation, and its a...

mes

4.2 K

Example 2: Approximating sin(x) with Taylor Polynomials and Calculating its Error

▶️ Watch on 3Speak In this video I go over a very in-depth video exploring the trigonometric sine function, its Taylor polynomials appro...

mes

4.2 K
PeakD

Trigonometry: Sine, Cosine and Tan Functions

https://youtu.be/WKTIlF2oWw8 ▶️Watch on 3Speak - Odysee - BitChute - Rumble - YouTube - PDF notes This video shows a brief introduction to...

mes

4.2 K
PeakD

Exact Trigonometry Ratios Part 1: 0, 30, 45, 60, and 90 Degrees

https://youtu.be/ln03a5KvQAY ▶️Watch on 3Speak - Odysee - BitChute - Rumble - DTube - YouTube - PDF notes This is a very useful on showing...

mes

4.2 K
PeakD

Trigonometry Identity: Proof that sin^2(x) + cos^2(x) = 1

https://youtu.be/o-fAx_96lgw ▶️Watch on 3Speak - Odysee - BitChute - Rumble - DTube - YouTube - PDF notes A simple proof of the very impor...

dkmathstats

100.90

Sum Of Angle Formulas For Sine & Cosine

Hi there. In this math education post I cover the topic of sum of angle formulas for sine and cosine. This topic is a part of the trigono...

dkmathstats

100.90

Double Angle Formula For Sine

Hi there. In this math post I cover the double angle formula for the sine trigonometric function. I cover the base formula, a rearranged ...

mes

4.2 K
PeakD

Trigonometry Graphing: Sin, Cos, Tan Functions

https://youtu.be/l_3cgeq-YXE A simple introduction to graphing Sine, Cosine and Tan Functions is shown. These functions are cyclical and ...

mes

4.2 K

Problems Plus 8: Trigonometric Formula and Sum of Series Involving Inverse Cotangent

▶️ Watch on 3Speak In this video I derive a similar formula as in Problem 7 but this time use arccot or inverse cotangent. I then use th...

mes

4.2 K

Problems Plus 7: Calculating π Using Inverse Tangent Maclaurin Series

▶️ Watch on 3Speak In this video I go over a very long problem that involves first determining several arctan formulas and then using th...

mes

4.2 K

Problems Plus 4: Limit of the Angle of a Spiraling Triangle Sequence

▶️ Watch on 3Speak In this video I go over a sequence which involves rotating triangles around a point and determining the limit of the ...

mes

4.2 K

Problems Plus 3: Trigonometric Identity and Sum of Infinite Series

▶️ Watch on 3Speak In this video I go over a two-part problem that involves proving a trigonometric identity and then using that identit...

mes

4.2 K

Problems Plus 1: 15th Derivative of sin(x^3) at x = 0

▶️ Watch on 3Speak In this video I go over Problem 1 which asks us to determine the 15th derivative at x = 0 for the function sin(x^3). ...

mes

4.2 K
PeakD

Inverse Functions Part 2: One to One Functions and the Horizontal Line Test

https://youtu.be/iSNuplUWrbA In this video I clarify the inverse functions in which I defined in my earlier video to state that it is onl...

mes

4.2 K
PeakD

Inverse Trigonometric Functions: Inverse Cosine, Sine, and Tan Functions

https://youtu.be/Ifv1vkJZdrk This video demonstrates how to get the inverse functions for the most common trigonometric functions in cosi...

mes

4.2 K
PeakD

Trigonometry: Proof of Law of Cosines (and Pythagorean Theorem)

https://youtu.be/wOCYb3Ku6yw In this video I show a simple geometric proof of the cosine law. This is very useful in real world applicati...

mes

4.2 K
PeakD

Trigonometry Identities: sin(-x) = - sin(x) and cos(-x) = cos(x)

https://youtu.be/tD5EA2SXyFQ In this video I prove the two identities, sin(-x) = - sin(x) and cos(-x) = cos(x), which show that cosine is...

mes

4.2 K
PeakD

Trigonometry Identities: cos(x +/- y) = cos(x)cos(y) -/+ sin(x)sin(y)

https://youtu.be/VuQczhk7HOs In this video I derive addition and subtraction identities, cos(x+y) and cos(x-y), using the Law of Cosines ...

mes

4.2 K
PeakD

Trigonometry Identities: cos(2π + x), sin(2π + x), cos(π/2 -x), sin(π/2 -x)

https://youtu.be/EynSefQs308 In this video I show some very useful trigonometric identities which basically involve shifting the sine or ...

mes

4.2 K
PeakD

Trigonometry Identities: sin(x +/- y) = sin(x)cos(y) +/- cos(x)sin(y)

https://youtu.be/edtk9thfwbM In this video I use the cos(x - y) identity which I proved in my earlier video to derive a very useful trigo...

mes

4.2 K
PeakD

Trigonometry and Limits: limit of sin(x)/x as x goes to 0

https://youtu.be/_Hts9GGx7oY In this video I show a geometric proof of this very useful limit of sin(x)/x as x goes to 0. I will use this...

mes

4.2 K
PeakD

Derivative of Trigonometric Functions: Derivative of sin(x)

https://youtu.be/elEvQ4Wu7Pk In this video I derive the derivative of sin(x) using the definition of the derivative as well as applying s...

mes

4.2 K
PeakD

Derivative of Trigonometric Functions: Derivative of cos(x)

https://youtu.be/LMjVp-GsrCw In this video I use the definition of derivative to derive the derivative for cos(x). Make sure you remember...

mes

4.2 K
PeakD

Derivative of Trigonometric Functions: Derivative of tan(x)

https://youtu.be/Jf6p4crjrSc In this video I derive the derivative of tan(x) using the quotient rule as well as the derivatives of sin(x)...

albuslucimus

1.5 K

My Math Book (Basics of Trig, Calculus, & Physics)

My Math Book (Basics of Trig, Calculus, & Physics) This post is s page by page table of contents with links. Cumulatively, this po...

mes

4.2 K
PeakD

Derivative of arcsine or Inverse sin(x)

https://youtu.be/rj2nQmiekz4 In this video I show an easy proof of the derivative of inverse sin(x) using implicit differentiation. You c...

mes

4.2 K
PeakD

Derivative of arccosine or Inverse cos(x)

https://youtu.be/ShNAwpojuXA In this video I show an easy proof of the derivative of inverse cos(x) using implicit differentiation. You c...

mes

4.2 K
PeakD

Derivative of arctan(x) or Inverse tan(x)

https://youtu.be/q9jdOiQ7pZY In this video I show an easy proof of the derivative of inverse tan(x) using implicit differentiation. You c...
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