Category: Olympiad maths

Class 9 Maths - Important Identities (#class9Maths)(#eduvictors)

Class 9 Maths - Important Identities(a+b)² = a² + 2ab+ b²(a–b)² = a² –2ab + b²a² – b² = (a+b)(a–b)(x+a)(x+b) = x² + (a+b)x + ab(a+b+c)² = a² +b² +c² + 2ab + 2bc + 2ca(a+b)³

CBSE Notes

CBSE Class 9 - Lines and Angles - Brain Teaser (#cbsenotes)(#eduvictors)

Lines and Angles - Brain Teaser Q: What is the measure of ∠A + ∠B + ∠C + ∠D + ∠E in the figure given below- assuming no angles and sides are equal. Give reason to your answer.

CBSE Notes

Maths Pearls - What is so special about Srinivasa Ramanujan's Magic Square? (#cbseNotes)

What is so special about Srinivasa Ramanujan's Magic Square? You may be familiar with magic squares. Srinivasa Ramanujan also designed his own magic square. This magic square looks similar

CBSE Notes

Class 8- NTSE - Maths - Square and Square Roots #class8Maths #eduvictors

Class 8- NTSE - Maths - Square and Square Roots Perfect Square 1. A number is called a perfect square if it is expressed as the square of a number. 2. E.g. 1- 4- 9- 16- 25- ... a

CBSE Notes

NTSE Maths Challenges

Following are the typical problems asked in NTSE- Oympiad Maths- and other Mathematical based aptitude tests (best viewed in Chrome or Firefox). Q1: Ramesh walks from his home to Railway stati

CBSE Notes

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