blackpenredpen
1.29M subscribers
5:59
I finally took the limit of the quadratic formula
blackpenredpen
29K views • 1 day ago
7:12
You have seen the integral of ln(x) but might not be able to solve this problem
blackpenredpen
40K views • 9 days ago
9:07
Oxford MAT asks: sin(72 degrees)
blackpenredpen
108K views • 3 weeks ago
2:16
Meet the 94-year-old calculus teacher! @ycmathematicsphysicsandche5659
blackpenredpen
21K views • 3 weeks ago
1:31:13
First time solving an A-Level maths exam! (90 minutes, uncut)
blackpenredpen
146K views • 1 month ago
8:33
How to solve the three-circle problem from the 2022 GCSE math exam
blackpenredpen
76K views • 1 month ago
1:25:23
Solutions to the 2023 AP Calc AB FRQ
blackpenredpen
31K views • 1 month ago
15:17
You see nonlinear equations, they see linear algebra! (Harvard-MIT math tournament)
blackpenredpen
136K views • 2 months ago
7:35
Which is the worst math debate: 0^0, sqrt(1), 0.999...=1, or 12/3(4)?
blackpenredpen
256K views • 2 months ago
8:50
You wouldn’t expect this "quadratic" equation to have 6 solutions!
blackpenredpen
118K views • 3 months ago
9:44
Using a logarithm property to make this equation easier!
blackpenredpen
88K views • 3 months ago
11:08
My first calculus 3 limit on YouTube
blackpenredpen
89K views • 3 months ago
6:37
Believe in geometry, not squaring both sides!
blackpenredpen
260K views • 5 months ago
10:57
Solution of the transcendental equation a^x+bx+c=0
blackpenredpen
151K views • 5 months ago
16:42
My failed attempts to the integral of sqrt(sin^2(x))
blackpenredpen
109K views • 5 months ago
12:59
if x+y=8, find the max of x^y
blackpenredpen
698K views • 5 months ago
13:21
Calculus teacher vs L'Hopital's rule students
blackpenredpen
85K views • 6 months ago
15:51
combining rational exponents, but using calculus,
blackpenredpen
96K views • 6 months ago
32:04
easy derivative but it took me 32 minutes
blackpenredpen
177K views • 6 months ago
11:54
My all-in-one calculus problem
blackpenredpen
97K views • 6 months ago
5:39
solving x^x=1 but x is not real!
blackpenredpen
118K views • 6 months ago
11:18
the sine triangle problem
blackpenredpen
84K views • 7 months ago
6:55
I couldn't solve x^x^x=2, so I solved x^x^(x+1)=2 instead
blackpenredpen
125K views • 7 months ago
9:55
Beyond the Gaussian integral
blackpenredpen
38K views • 7 months ago
9:29
all solutions to 2^x-3x-1=0 (transcendental equation)
blackpenredpen
140K views • 7 months ago
14:50
finally 0^0 approaches 0 after 6 years!
blackpenredpen
452K views • 7 months ago
7:31
I want all trig functions in one integral!
blackpenredpen
635K views • 7 months ago
14:24
Berkeley Math Tournament calculus tiebreaker
blackpenredpen
89K views • 7 months ago
8:29
I integrated the quadratic formula
blackpenredpen
409K views • 7 months ago
6:49
how is e^e^x=1 solvable??
blackpenredpen
625K views • 8 months ago
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