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Trending Posts
@ireti
0
about 21 hours ago
StemSocial
How X became the Alphabet in Unknown Mathematical Equation
Do you know the most missing thing in the world is "X"? Either word, letter, humans, animals, or even thing. If you are to solve their problem, X is always the missing culprit.…
@j2e2xae
0
4 days ago
STEMGeeks
Una ecuación diofántica / A diophantine equation [ ES / EN ]
x³ + 2y³ = 4z³, (x, y, z) ∈ ℤ EspañolEnglish
@mes
0
about 1 year ago
MES Science
Vectors as Forces in Physics and Engineering
▶️ Watch on 3Speak In this video I go over applications of vectors in physics and engin
@mes
0
about 1 year ago
MES Science
Derivative of Trigonometric Functions: Derivative of sin(x)
In this video I derive the derivative of sin(x) using the definition of the derivative as well as applying some useful trigonometric identities and limits. Download video…
@mes
0
about 1 year ago
MES Science
Trigonometry Identities: sin(x +/- y) = sin(x)cos(y) +/- cos(x)sin(y)
In this video I use the cos(x - y) identity which I proved in my earlier video to derive a very useful trigonometric identity for sin(x + y) and sin(x -y). Download video…
@mes
0
about 1 year ago
MES Science
Trigonometry and Limits: limit of sin(x)/x as x goes to 0
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 in later videos to prove many trig derivatives and integrals.…
@meta007
0
about 1 year ago
StemSocial
Another interesting problem related to circle and triangle
Hello math bugs(🐞) and hivers(🐝) I hope you are strong and stout and doing good in life You can see a ∆ ABC circumscribed by a circle. CD and BE , the bisectors…
@mes
0
about 1 year ago
MES Science
Trigonometry Identities: cos(2π + x), sin(2π + x), cos(π/2 -x), sin(π/2 -x)
In this video I show some very useful trigonometric identities which basically involve shifting the sine or cosine functions by either 2π or 360 degrees and π/2 or 90 degrees.…
@mes
0
about 1 year ago
MES Science
Trigonometry Identities: cos(x +/- y) = cos(x)cos(y) -/+ sin(x)sin(y)
In this video I derive addition and subtraction identities, cos(x+y) and cos(x-y), using the Law of Cosines and the Pythagorean Theorem. This identity is very useful in all of…
@mes
0
about 1 year ago
MES Science
Unit Vectors
▶️ Watch on 3Speak In this video I go over unit vectors, which are vectors of length 1.
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