16:49

Find all positive integer n

12:10

A factorial exercise 💪

12:22

HCF of (x^91 + 1) and (x^65 + 1)

05:07

Find the sum of coefficients

10:54

Prove 30^(10n+1) + 5^21n is divisible by 31

14:53

Find all x

14:38

Find all real pairs (x,y)

10:48

Find all real x

10:31

A fun proof for an integer

09:27

Integral of infinite product of roots

08:48

Similar matrices have the same characteristic polynomial

21:39

a * b = ab + a + b

15:10

Prove that (1/x + 1/y + 1/z) is greater than 3

13:36

Estonian Math Olympiad

09:44

Kaprekar's Constant

08:25

Find the smallest n

10:26

n! = 8 + 2^k

10:44

pqr = 59 ( p + q + r)

13:21

A Canadian Problem

16:47

Prove that n^3 +11n is divisible by 6

14:19

Error Function Application

17:24

Maclaurin series of sin^2x

15:48

x^y = y^(x-y)

11:46

How many 4-digit numbers with all odd digits are divisible by 11

20:37

Integrate x^-x dx

04:54

2^(2^x) = 16^(16^16)

05:32

x^2 + cos x = 2024

09:42

(n-1)!+1 = n^2

20:59

1995 British Mathematics Olympiad problem

11:13

Find a+b+c+d

14:47

A peek into some geometry

16:33

2010 applications of f

13:47

Find the sum of all possible values of x² + y²

09:46

Find log_x (y)

19:08

A beautiful integral for the mind

17:33

Find (x+y+z) [Harvard-MIT] Guts contest

07:05

Graphs don't intersect? k must be ...........

20:56

Find all integer solutions (Russian Math Olympiad)

10:24

Sqrt(3^x^2)) = 3^(sqrtx)

06:23

How many digits in 2^100

13:03

n^3 = (n+2)!!

15:34

2^x = 4x

16:16

Find the maximum value of n

07:21

The Second Pigeonhole Principle

06:45

m!n!=10!

17:50

1973 USAMO ( System of equations)

18:08

First Pigeonhole Principle

08:46

Cubic equation from determinant

17:26

2015 Denmark [Georg Mohr]

14:32

A problem from Lithuania 2010

18:33

JEE Advanced 2022 #14

05:52

Another System of Equations from Denmark

08:19

System of Symmetric Equations

09:12

Improve your u-sub

13:55

Regional Math Olympiad Problem

09:07

Invoking the Gamma Function

06:59

An exponential trig equation

09:28

x - 1/x² = (rad2)i , Find x^2187 - 1/x^2187.

14:31

2024 Canada Euclid Math Contest

07:41

The Last 3 digits of sqrt( 1^3 + 2^3 + ...+ 2024^3)