Channel Avatar

blackpenredpen @UC_SvYP0k05UKiJ_2ndB02IA@youtube.com

1.3M subscribers - no pronouns :c

I share the fun of solving math problems!


06:29
A proof for sin(a+b) and cos(a+b) that you probably haven’t seen before
06:46
Believe in triangles, not squaring both sides!
05:37
They didn't get this integral right, so here's the solution (Berkeley Math Tournament Integral bee)
08:02
Finding the domain of x^x
08:13
Math for fun: solving (4^x+8)^4-(8^x-4)^4=(4+8^x+4^x)^4
09:49
Solving x^5=1
07:57
You don't need calculus for this question
10:20
Can you solve these 3 calculus tiebreakers the fastest? (2023 Berkeley Math Tournament)
07:41
A non-real way of solving Fresnel's integrals (but I am not sure if it's legit)
12:17
What if we changed a Fresnel's integral?
08:48
In how many ways can we distribute 6 distinct balls into 3 identical boxes?
08:06
Solving improper integrals without actually solving them! (part 1)
09:50
the COOLEST limit on YouTube!
11:14
I used a double integral to solve a single improper integral
10:42
A cute limit with 0^0 form and the answer is 0
09:45
How Cauchy would find the maximum of sqrt(x)+sqrt(y)
06:41
What is the equation of the line that’s equal-distance from two given points?
09:55
Is x^x=0 solvable?
08:39
Can we just keep taking the natural logarithm?
11:28
3 levels of "perpendicular"
11:06
Finding the distance from a point to a line (using vectors)
09:37
When you accidentally multiply matrices the way, but nobody notices (Reddit r/mathmemes)
09:03
Can we use power series for this limit of a two-variable function?
05:12
What is f''(x) in terms of dx/dy?
05:43
Quadratic formula but (a, b, c) goes to (0, 0, 0)
06:39
The most fun way of solving this quartic equation
09:10
Quadratic formula for non-constant coefficients
05:59
I finally took the limit of the quadratic formula
07:12
Math for fun: integral of ln(x) from 1 to ? is equal to 2
09:07
Oxford MAT asks: sin(72 degrees)
02:16
Meet the 94-year-old calculus teacher! @ycmathematicsphysicsandche5659
01:31:13
First time solving an A-Level maths exam! (90 minutes, uncut)
08:33
How to solve the three-circle problem from the 2022 GCSE math exam
01:25:23
Solutions to the 2023 AP Calc AB FRQ
15:17
You see nonlinear equations, they see linear algebra! (Harvard-MIT math tournament)
07:35
Which is the worst math debate: 0^0, sqrt(1), 0.999...=1, or 12/3(4)?
08:50
You wouldn’t expect this "quadratic" equation to have 6 solutions!
09:44
Is this equation solvable? x^ln(4)+x^ln(10)=x^ln(25)
11:08
My first calculus 3 limit on YouTube
06:37
Believe in geometry, not squaring both sides!
10:57
Solution of the transcendental equation a^x+bx+c=0
16:42
My failed attempts to the integral of sqrt(sin^2(x))
12:59
if x+y=8, find the max of x^y (Lambert W function)
13:21
Calculus teacher vs L'Hopital's rule students
15:51
combining rational exponents, but using calculus,
32:04
easy derivative but it took me 32 minutes
11:54
My all-in-one calculus problem
05:39
solving x^x=1 but x is not real!
11:18
the sine triangle problem
06:55
I couldn't solve x^x^x=2, so I solved x^x^(x+1)=2 instead
09:55
I modified the Gaussian integral!
09:29
all solutions to 2^x-3x-1=0 (transcendental equation)
14:50
finally 0^0 approaches 0 (after 6 years!)
07:31
I want all trig functions in one integral!
14:24
Berkeley Math Tournament calculus tiebreaker
08:29
I integrated the quadratic formula
06:49
how is e^e^x=1 solvable??
09:53
the first 5 days of calculus 2 but the integrals get harder!
05:50
limit of 1/(1-cos(ln(sin(tan^-1(e^(x^2)))))) as x goes to infinity
01:27:10
How to solve trigonometry identities! (ultimate practice)