#trigonometry

In this video, I go over the Integral Test, which states that a series converges only if its corresponding improper integral also converges. Likewise, if the improper integral diverges, then the series

Tutorial on the Integral Test for determining if an infinite series converges or diverges, including an example.

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 of the plane vary, the line sweeps out a circular hyperboloid of one

A math post on introductory trigonometric ratios and SOH CAH TOA memory aid.

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

In this video I go over a very in-depth video exploring the trigonometric sine function, its Taylor polynomials approximation, and its associated error. The Maclaurin polynomial (Taylor series centered

▶️Watch on 3Speak - Odysee - BitChute - Rumble - YouTube - PDF notes This video shows a brief introduction to the wonderful world of trigonometry and defines the functions Sine, Cosine and Tan. Also, how

▶️Watch on 3Speak - Odysee - BitChute - Rumble - DTube - YouTube - PDF notes This is a very useful on showing some easy ways of deriving how to get the exact Trig Ratios for 0, 30, 45, 60 and 90 degrees.

▶️Watch on 3Speak - Odysee - BitChute - Rumble - DTube - YouTube - PDF notes This video provides some examples to further explain trigonometric functions which were discussed in my previous videos. View

▶️Watch on 3Speak - Odysee - BitChute - Rumble - DTube - YouTube - PDF notes A simple proof of the very important and useful trigonometry Identity sin2(x) + cos2(x) = 1 is shown. Also the notation for

Going over the sum of two angles formulas for sine and cosine in math & trigonometry.

A math post going over the double angle formula for sine in trigonometry.

A simple introduction to graphing Sine, Cosine and Tan Functions is shown. These functions are cyclical and are used in many real world applications so it is very important to understand there graphs.

In this video I derive a similar formula as in Problem 7 but this time use arccot or inverse cotangent. I then use that formula, as well as the useful method of the Telescoping Sum, to determine the sum

In this video I go over a very long problem that involves first determining several arctan formulas and then using them to determine the value of the π up to 7 decimal places. One such formula is named

In this video I go over a sequence which involves rotating triangles around a point and determining the limit of the inner angle of the triangles. To solve this I first use the Pythagorean Theorem to determine

In this video I go over a two-part problem that involves proving a trigonometric identity and then using that identity to find the sum of an infinite series. The trig identity involves a half angle tangent

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). Instead of manually solving the derivatives one by one, we can instead use the Maclaurin

In this video I clarify the inverse functions in which I defined in my earlier video to state that it is only applicable to one to one functions. This requirement is illustrated in trigonometric functions

This video demonstrates how to get the inverse functions for the most common trigonometric functions in cosine, sine, and tan functions. Trigonometric functions are not one to one functions so the procedure