01:04

inverse of a 2 by 2 matrix in 1 minute! Linear algebra

00:46

this equation has a sqrt(x) as the exponent

01:02

what's the second derivative of sin^-1(x)? calculus ASMR tutorial!

01:10

trigonometric function vs the "-1 power"

01:37

how I teach adding fractions with different denominators

00:32

I was trying to make a thumbnail

00:36

what is (2/3)^4 = ? Don't get this wrong!

00:51

solving 2^3^4^x=512, huh?

00:38

chain rule is hard with secant, calculus 1 tutorial!

00:38

an integral in a limit???

00:41

when students see 2^x=20, they think x=10 but that's wrong

00:47

wow so many square roots!

00:47

this series is actually easy!

01:02

differential sounds hard but it's actually easy (if you can take the derivative)

01:14

finding the equation of a tangent line!

00:40

one __?__ (know these to impress)

00:49

cool way to find the greatest common divisor

01:26

46 people got this integral right

00:33

focus on my pens, not the quadratic formula!

00:44

derivative of 1/e^x, no quotient rule, calculus 1 tutorial FAST!

01:33

the second derivative of sin(x^2) in the hardest way

01:08

classic math: (irrational)^(irrational)=rational?

00:41

super cool formulas 1+2+...+n, 1^2+2^2+...+n^2, 1^3+2^3+...+n^3

00:58

there's a trick to convert this fraction to decimal

00:33

don't get this wrong! what's the derivative of pi^3? FAST calculus tutorial!

00:33

this is NOT HARD!

00:39

p-value vs significant level, when to reject the null hypothesis, quick stats review!

00:45

Can we solve e^x=ln(x) in the reals?

03:14

I think they were just nervous

01:24

fast trig sub table! calculus 2

00:47

(sin(pi))^cos(pi)

00:59

Must know this for calculus 1!

00:41

you didn't learn this in elementary school! exponent vs tetration

00:51

many people think this is wrong!

00:48

solving x^5=20 vs 5^x=20, know the difference!

00:34

0.12121212121212121212121212121212121212121212121212121212121212121212121212121212... as a fraction!

00:37

log equation with x in the base

00:37

You haven't solved a radical irrational power equation

00:43

this equation has no solutions, not even in the complex world!

00:40

no math here, just a Halloween special.

00:56

π and 2, a beautiful coincidence

00:45

linearization of sin(x) at x=0

00:50

the 95% rule in statistics, FAST!

00:42

why do we switch the inequality?????

00:37

what's 4-3*2+1=? FAST

01:36

dividing complex numbers

00:41

no one does the 9-th root

00:40

what is sqrt(4!)?

00:55

the easiest quintic equation with 2 complex solutions

01:09

no one finds tan(15 deg) like this

01:14

these two equations confuse many students

01:31

Newton’s method, regular speed!

00:35

No one solves quadratic equations like this!

00:41

synthetic division with blackpenredpen

00:47

this integral is not a joke (fast)

00:52

what is half of 8? 3 answers! FAST!

00:52

Proving the double angle formula for sin(2x)

00:36

proving the vertex formula of a parabola by using calculus

00:43

derivative of sqrt(ln(x)+sqrt(ln(x)), FAST!

00:50

cos(sin^-1(x)) = ? FAST!