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2022

Proving Null Space is a Vector Spaceoriginal ↗
11 Dec 2022
Case when three planes meet in a lineoriginal ↗
11 Dec 2022
IB SL Math 2015 Paper 2original ↗
11 Dec 2022
AP Calculus BC Differential Equations Practiceoriginal ↗
11 Dec 2022
Row Space and elementary row operationsoriginal ↗
10 Dec 2022
Exploring Fibonacci, Catalan and Derangement numbersoriginal ↗
9 Dec 2022
IB Questions Domain Rangeoriginal ↗
9 Dec 2022
In variance problem on spare tireoriginal ↗
6 Dec 2022
Why (a/d,b/d)=1 ? where d is (a,b)original ↗
1 Dec 2022
2021 AMC 10B Problem 5original ↗
30 Nov 2022
When we can cancel common factors in mod equality ?original ↗
30 Nov 2022
IB SL 2022, Q9 on Probabilityoriginal ↗
30 Nov 2022
IB SL 2022, Q8 on intersection of functions and area under curveoriginal ↗
30 Nov 2022
IB SL 2022, Q5 on least positive value of x for which cos(x/2+pi/2_=1/sqrt(2)original ↗
30 Nov 2022
IB SL 2022, Q6 on Binomial Expansionoriginal ↗
30 Nov 2022
IB HL 2021, Paper 3 Question on n sided Polygonoriginal ↗
30 Nov 2022
IB HL 2021, Paper 3 Question on cubic polynomialoriginal ↗
30 Nov 2022
IB Kinematicsoriginal ↗
29 Nov 2022
How to think of linear equation as a mod equation ?original ↗
29 Nov 2022
What is the sum of LCM and GCD ?original ↗
28 Nov 2022
AIME problem on LCMoriginal ↗
27 Nov 2022
Smallest number leaving same remainder of 1original ↗
27 Nov 2022
Crux argument in proof showing why every common divisor divides gcd and why every common multiple divides lcmoriginal ↗
27 Nov 2022
Probability distribution, Picking red ball on the nth trialoriginal ↗
26 Nov 2022
2021 AM 12A Problem 8original ↗
26 Nov 2022
Combining Two Discrete Independent Random Variablesoriginal ↗
26 Nov 2022
Proof GCD*LCM = ab in 3 stepsoriginal ↗
25 Nov 2022
2002 AMC 12A Problem 20original ↗
25 Nov 2022
2021 AMC 10A Problem 8original ↗
25 Nov 2022
Finding the Transformationoriginal ↗
22 Nov 2022
Column Space, Row Space and Null Spaceoriginal ↗
22 Nov 2022
A strange projection transformationoriginal ↗
22 Nov 2022
Othogonal vectors and linear independence of column vectorsoriginal ↗
21 Nov 2022
Changing Basis Vectorsoriginal ↗
20 Nov 2022
Why GCD*LCM=Product of numbers themselvesoriginal ↗
19 Nov 2022
Why every common divisor divides GCD and LCM divides every common multiple i.e c|(a,b) and [a,b]|k ?original ↗
18 Nov 2022
IB Math: What is ambiguous case in Trigonometry?original ↗
17 Nov 2022
Why shortcut to GCD works ?original ↗
17 Nov 2022
3 steps to understand why smallest positive linear combination of two numbers give GCDoriginal ↗
17 Nov 2022
Why smallest positive linear combination of a and b is the GCD of a and b ?original ↗
16 Nov 2022
Why (ca,cb)=c(a,b) ?original ↗
16 Nov 2022
Why consecutive odds are relative primes ?original ↗
8 Nov 2022
Why consecutive natural numbers are relative primes ?original ↗
8 Nov 2022
SAT Trick question on reading graphsoriginal ↗
5 Nov 2022
IB HL Product of Logarithms Question (application of change of base formula)original ↗
5 Nov 2022
Two proofs of 1089original ↗
4 Nov 2022
A simple quadratic residueoriginal ↗
31 Oct 2022
IB Multiple ways to do sigma notation questionoriginal ↗
31 Oct 2022
IB Math proof Any number can be expressed as uniquely as 4k, 4k+1, 4k+2 or 4k+3original ↗
31 Oct 2022
Divisibility: Two important connectionsoriginal ↗
30 Oct 2022
Using inclusion exclusion find phi(70)original ↗
26 Oct 2022
Multiple planes passing through 3 pointsoriginal ↗
25 Oct 2022
IB, Linear Algebra, Vectors, Equation of Planeoriginal ↗
25 Oct 2022
Distributing 2 identical oranges among 4 peopleoriginal ↗
24 Oct 2022
Negating Quantifiersoriginal ↗
23 Oct 2022
Translating Quantifiersoriginal ↗
23 Oct 2022
Union, Intersection and Symmetric Difference of Setsoriginal ↗
23 Oct 2022
General formula for union of three sets using inclusion exclusion principleoriginal ↗
23 Oct 2022
Distributing 1 identical type and other different type of Thekua to 5 different childrenoriginal ↗
16 Oct 2022
Distributing 2 identical types of Thekua to 5 different childrenoriginal ↗
16 Oct 2022
Distributing unlabeled balls into labeled buckets (non empty and constraints)original ↗
15 Oct 2022
Another way to think of at least one ball (unlabeled ball) in labeled boxoriginal ↗
15 Oct 2022
Why a converging sequence has exactly one linitoriginal ↗
13 Oct 2022
Bell Numberoriginal ↗
13 Oct 2022
Number of surjective functionsoriginal ↗
13 Oct 2022
Number of Surjective functionsoriginal ↗
9 Oct 2022
Fixed point (Crumpling a paper)original ↗
8 Oct 2022
When composite function gof(x) is bijective then what we can say about g(x) and f(x) ?original ↗
7 Oct 2022
AP Calculus Convergence of sequenceoriginal ↗
6 Oct 2022
Squeeze theorem to find the limit of a sequenceoriginal ↗
5 Oct 2022
Distributing Candy (Similar)original ↗
4 Oct 2022
Proving the composite function as bijectiveoriginal ↗
3 Oct 2022
Voronoi Diagram: Radius and center of largest circleoriginal ↗
2 Oct 2022
AP Calculus: Implicit and Chain rule examplesoriginal ↗
2 Oct 2022
AP Calculus: Sketching Graphsoriginal ↗
2 Oct 2022
IB Math Voronoi diagram (Deciding the site for the rubbish dump)original ↗
1 Oct 2022
Degree of Vertex in Voronoi Diagram greater than 3original ↗
1 Oct 2022
Vertex in a Voronoi diagramoriginal ↗
1 Oct 2022
Length of Altitude on Hypotenuseoriginal ↗
30 Sept 2022
AP Calculus: Practice on using FTC with variable limitsoriginal ↗
29 Sept 2022
AP Calculus: FTC Derivative of integrals with variable lower limitoriginal ↗
29 Sept 2022
AP Calculus: Derivative of Integral (FTC)original ↗
29 Sept 2022
AP Calculus: Application of Fundamental theorem of Calculusoriginal ↗
29 Sept 2022
AP Calculus: Integral of 2^(3x)original ↗
29 Sept 2022
Bounded sequence a_n is same as |a_n|original ↗
28 Sept 2022
Graph of a rational functionoriginal ↗
27 Sept 2022
AP Calculus BC (Integration by parts using table of values)original ↗
27 Sept 2022
AP Calculus BC (Double Trig Substitution)original ↗
27 Sept 2022
AP Calculus BC Integrationoriginal ↗
27 Sept 2022
Delta epsilon proof of limit x^2 = 9 as x tends to 3original ↗
26 Sept 2022
Translation Matrix as Linear Transformationoriginal ↗
26 Sept 2022
IB Polynomials Sum, Productoriginal ↗
26 Sept 2022
AP Calculus: Improper Integral (-infinity and infinity)original ↗
26 Sept 2022
Dividing a line into equal parts using compassoriginal ↗
26 Sept 2022
Show x is a linear combination of u and voriginal ↗
25 Sept 2022
Difference between scalar 0 and vector 0original ↗
25 Sept 2022
Set of vectors whose second coordinate is non-negative integer multiple of 5original ↗
25 Sept 2022
Circle, angles and common tangentsoriginal ↗
25 Sept 2022
Find the missing angle in Cyclic Polygonoriginal ↗
25 Sept 2022
Alternate Segment Theorem Proof and Examplesoriginal ↗
25 Sept 2022
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