# MathsSmart

• ### Pythagoras Theorem | Euclid's proof - Proof / derivation - 1

19,596 views 5 years ago
Pythagoras Theorem states that the square of the length of hypotenuse of a right angled triangle is equal to the sum of squares of the length of other two sides.
This video shows euclid's proof of pythagoras theorem Show less

• ### Very difficult challenging problem Find length of chord PQ, circle inscribed in a rectangle PRMO RMO - Duration: 4 minutes, 59 seconds.

• 405 views
• 3 days ago
• ### Remainders not same, Difference not same, Find x, divided by 13,15, 19 give remainders 1,2,3 - Duration: 6 minutes, 54 seconds.

• 460 views
• 1 week ago
• ### Find the area of the shaded region | Mensuration | PRMO NMTC Mental Ability | Trapezoid | IBPS Bank - Duration: 5 minutes, 21 seconds.

• 573 views
• 2 weeks ago

• Starts:

• Starts:
• ### What ratio is shaded ? Four equilateral triangles inscribed in a rectangle PRMO RMO IBPS IMO Mental - Duration: 5 minutes, 53 seconds.

• 458 views
• 3 weeks ago
• ### Find the sum of the digits of a long sequence, last term is 321 digit long 9+99+999 + ...(321 terms) - Duration: 3 minutes, 21 seconds.

• 698 views
• 1 month ago
• ### a must know Hard geometry problem | Find radius of the smallest circle | Three circles | RMO | INMO - Duration: 8 minutes, 17 seconds.

• 754 views
• 1 month ago
• ### Find remainder of [(257)^33 + 46]^26 / 50 a very hard problem solved using Number Theory - Duration: 5 minutes, 37 seconds.

• 667 views
• 1 month ago
• ### Hard problem in mensuration | Area of the shaded region | PRMO | RMO | Mental ability - Duration: 6 minutes, 57 seconds.

• 690 views
• 1 month ago
• ### How to find Equation of parallel and Perpendicular lines to a given line y = mx + c - Duration: 4 minutes, 18 seconds.

• 419 views
• 2 months ago
• ### Shortcut to remember values and conversions of trigonometric ratios (T-ratios) in different quadrant - Duration: 2 minutes, 52 seconds.

• 769 views
• 2 months ago
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• ## Created playlists

• ### Practical Geometry - Playlist

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• ## Algebra Play all

• ### Sum of first n natural numbers - Derivation of a formula - Duration: 8 minutes, 11 seconds.

• 206,244 views
• 6 years ago
• ### Pattern and Puzzles - Sum of y^2 + 2b, y^4 + 4b, y^6 + 6b .. n terms - Tricks and Solutions - Duration: 5 minutes, 29 seconds.

• 1,606 views
• 6 years ago
• ### Geometrical Progression - Product of n terms is nth power of middle term - Hard Problem - Duration: 6 minutes, 44 seconds.

• 3,096 views
• 6 years ago
• ### Sum of infinite Geometrical progression where r is a proper fraction - Duration: 3 minutes, 35 seconds.

• 3,527 views
• 6 years ago
• ### Sum of Geometrical Progression formula - Derivation of formula to find Sum n no of terms - Duration: 4 minutes, 50 seconds.

• 49,918 views
• 6 years ago
• ### Geometrical Progression - Sum of infinite terms - Derivation - Duration: 6 minutes, 42 seconds.

• 22,155 views
• 6 years ago
• ### Geometrical Mean - Deffinition and Method to find geometrical mean - Duration: 6 minutes, 37 seconds.

• 3,166 views
• 6 years ago
• ### Geometrical Progression - Method to insert 5 geometrical means between (32/81) and (9/2) - Duration: 8 minutes, 55 seconds.

• 3,576 views
• 6 years ago
• ### Simplify Determinant using properties - Duration: 5 minutes, 27 seconds.

• 113,133 views
• 6 years ago
• ### Determinant solved problem - difficulty medium - Duration: 3 minutes, 52 seconds.

• 8,035 views
• 6 years ago
• ### Determinant solved problem - Hard - Duration: 4 minutes, 37 seconds.

• 14,925 views
• 6 years ago
• ### Determinant solved problem - simple - Duration: 2 minutes, 13 seconds.

• 5,794 views
• 6 years ago
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• ## Area of Geometric figures Play all

• ### Geometry - concept of area - Duration: 9 minutes, 23 seconds.

• 12,185 views
• 6 years ago
• ### Rectangle Area | Formula derivation | Geometry | Mensuration - Duration: 6 minutes, 19 seconds.

• 16,789 views
• 6 years ago
• ### Area of right angled triangle - Derivation of Formula| Mensuration CBSE - Duration: 7 minutes, 5 seconds.

• 35,117 views
• 6 years ago
• ### Area of parallelogram - derivation of Formula - Duration: 8 minutes, 58 seconds.

• 5,669 views
• 6 years ago
• ### Area of triangle - Derivation of the formula| mensuration Grade 8 - Duration: 8 minutes, 52 seconds.

• 28,271 views
• 6 years ago
• ### Trapeziu area | Area of Trapezoid | Formula derivation - Duration: 7 minutes, 57 seconds.

• 9,707 views
• 6 years ago
• ### Rhombus Area | Area of Kite | Derivation of formula | Mensuration - Duration: 12 minutes, 38 seconds.

• 7,288 views
• 6 years ago
• ### Area of triangle with sides unknown | Area of triangle on a grid where sides are unknown | - Duration: 8 minutes, 2 seconds.

• 18,120 views
• 6 years ago
• ### Area of triangle when sides are known - solved problem - Duration: 7 minutes, 24 seconds.

• 242,828 views
• 6 years ago
• ### Triangle Area - solved problem ( Difficulty - easy) - Duration: 111 seconds.

• 353 views
• 6 years ago
• ### Geometry Area of parallelogram - find normal - solved math problem - Duration: 3 minutes, 59 seconds.

• 2,568 views
• 6 years ago
• ### Area of parallelogram - complex problem solved example - Duration: 7 minutes, 55 seconds.

• 2,189 views
• 6 years ago
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• ## Factorizing quadratic expression Play all

Factorizing quadratic expression can be as simple as using an algebraic identity or involve application of other factorizing methods. This playlist solves multiple factorization problems to cover all the factorization methods
• ### Factorization 3x^2 + 13x + 4 - Duration: 3 minutes, 12 seconds.

• 411,918 views
• 6 years ago
• ### Math Problem Factorization Factorise 12y^2 - 30y + 12 - Duration: 2 minutes, 56 seconds.

• 2,664 views
• 6 years ago
• ### Math problem Factorization x^2 + 6xy - 91y^2 - Duration: 3 minutes, 5 seconds.

• 6,565 views
• 6 years ago
• ### Math Problem Factorization - a^3 + a^2 - 41a - Duration: 2 minutes, 33 seconds.

• 926 views
• 6 years ago
• ### Math problem Factorisation 17 - 32x - 4x^2 - Duration: 3 minutes, 27 seconds.

• 2,585 views
• 6 years ago
• ### Math problem Factorization - 9m^2 - 24m +16 - Duration: 2 minutes.

• 1,216 views
• 6 years ago
• ### Math problem Factorization 250p^3 + 2 Difficulty Easy - Solved example - Duration: 2 minutes, 24 seconds.

• 398 views
• 6 years ago
• ### Factorizing cubic expression using identity a squared minus b squared - Duration: 3 minutes, 1 second.

• 661 views
• 6 years ago
• ### Math problem Factorization - x^4 -289 - Duration: 2 minutes, 41 seconds.

• 4,918 views
• 6 years ago
• ### Math problem Factorization x^2 + xy - 56y^2 - Duration: 2 minutes, 30 seconds.

• 15,227 views
• 6 years ago
• ### Factoring quadratic expression in two variables - Duration: 3 minutes, 36 seconds.

• 9,114 views
• 6 years ago
• ### Math Problem Factorization n^2 - 12n - 45 - Duration: 2 minutes, 58 seconds.

• 978 views
• 6 years ago
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• ## Work and time math problems Play all

• ### Variations - Work and Time concepts - Duration: 9 minutes, 19 seconds.

• 3,675 views
• 6 years ago
• ### Work and time - Combined Speed of 3 and 2 people are given - Duration: 4 minutes, 46 seconds.

• 3,968 views
• 6 years ago
• ### Work and time math problem with two speeds - Difficulty Medium - Duration: 5 minutes, 42 seconds.

• 2,538 views
• 6 years ago
• ### Work and time problem where three relative speeds are given Find time taken individually - Duration: 8 minutes, 53 seconds.

• 1,806 views
• 6 years ago
• ### work and time math problem many to one example - Duration: 9 minutes, 19 seconds.

• 4,753 views
• 6 years ago
• ### work and time problem with two speeds - Duration: 5 minutes, 43 seconds.

• 1,594 views
• 6 years ago
• ### Work and Time problem Men and Boys working together - (Difficulty Medium) - Duration: 6 minutes, 13 seconds.

• 2,302 views
• 6 years ago
• ### Work and Time - Simple Problem- Learn Short Cuts - Duration: 6 minutes, 11 seconds.

• 2,945 views
• 6 years ago
• ### if 36 men build 140m wall in 21 days, how many men build 50m in 15 days - Duration: 5 minutes, 28 seconds.

• 50,446 views
• 6 years ago
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