General maths (10th) chapter 1 exercise 1.1 Question-27
Автор: online tutor
Загружено: 2020-04-10
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In this online lecture,Online Tutor explains Matric part 2 General Mathematics Chapter 1 "Algebric Formulas and Applications" in Urdu.The topic being discussed is Exercise 1.1, Question no 27 As per National syllabus 2006 and National Text book and Learning Materials Policy 2007 Authorised by THE PUNJAB CURRICULUM AUTHORITY PUNJAB , punjab text book board Lahore/Sindh text book board/KPK text book board 10th Class book 2 lecture is conducted in Urdu/hindi/English. This lecture for 10th class Mathematics Chapter 1 is created for all students who want to prepare this topic in detail.
Algebra is a branch of Mathematics that substitutes letters for numbers. An algebraic equation depicts a scale, what is done on one side of the scale with a number is also done to either side of the scale. The numbers are constants. Algebra also includes real numbers, complex numbers, matrices, vectors and much more. X, Y, A, B are the most commonly used letters that represent the algebraic problems and equation 1/b.
Following are some important formulas used in mathemaics.
a2 – b2 = (a – b)(a + b)
(a+b)2 = a2 + 2ab + b2
a2 + b2 = (a – b)2 + 2ab
(a – b)2 = a2 – 2ab + b2
(a + b + c)2 = a2 + b2 + c2 + 2ab + 2ac + 2bc
(a – b – c)2 = a2 + b2 + c2 – 2ab – 2ac + 2bc
(a + b)3 = a3 + 3a2b + 3ab2 + b3
(a + b)3 = a3 + b3 + 3ab(a + b)
(a – b)3 = a3 – 3a2b + 3ab2 – b3
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