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CBSE 10th Board Real Numbers Polynomials formulas from Chapter 1 to 5 of Mathematics will get good marks – CBSE 10th Board: Memorize these formulas from Chapter 1 to 5 of Mathematics, you will get good scores, Education News

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Maths Formulas For 10th CBSE Board: Mathematics is a subject which students generally fear. At the same time, this is also a subject in which if remembered in a formulaic manner then it becomes easy to get marks. To help you get a good grip on CBSE Class 10 Maths chapters, we have brought you a complete list of Maths Formulas. Let us tell you, these formulas of class 10th are also applicable in important competitive examinations like JEE, NEET. Let us know about all the important formals from Chapter 1 to Chapter 5.

Chapter 1 – Real Numbers

Natural Number- N = { 1, 2,3,4,5 … }

Hall Number-W={ 0, 1, 2, 3, 4, 5… }

Rational Numbers- Numbers which can be represented in the form a/b are called rational numbers.

LCM (P, Q, R) = PQRHCF(P, Q, R) / [HCF ( P, Q) . HCF( Q, R) . HCF ( P, R)]

HCF (P, Q, R) = PQRLCM(P, Q, R) / [LCM ( P, Q) . LCM ( Q, R) . LCM ( P, R)]

Chapter 2 – Polynomials

– (a+b)2 = a2+2ab+b2

– (a−b)2=a2−2ab+b2

– (x+a)(x+b) = x2+(a+b)x+ab

– a2−b2 = (a+b)(a−b)

– a3−b3 = (a−b)(a2+ab+b2)

– a3+b3 = (a+b)(a2−ab+b2)

– (a+b)3 = a3+3a2b+3ab2+b3

– (a−b)3 = a3−3a2b+3ab2−b3

Chapter 3 – Pair of Linear Equations in Two Variables

 

– Linear equation in one variable: ax +b =0, a≠0 and a&b are real numbers.

– Linear equation in two variables: ax+ by+ c =0, a≠0 & b≠0 and a,b & c are real numbers.

– Linear equation in three variables: ax+ by+ cz= 0, a≠0 , b≠0, c≠0 and a,b,c,d are real numbers.

– a1x+b1y+c1=0

– a2x+b2y+c2=0

Where a1, b1, c1, a2, b2, c2 are all real numbers and a12+ b12 ≠ 0, a22+ b22 ≠ 0.

Chapter 4 – Quadratic Equation

– x = (α, β) = [-b ± √(b2 – 4ac)]/2a provided b2 – 4ac >= 0

– A quadratic equation is ax2 + bx + c = 0.

Chapter 5 – Arithmetic Progressions

nth term of AP = nth term = a + (n-1) d

Sum of n terms in AP = Sn = n/2[2a + (n – 1) × d]

Sum of all terms in AP with last term ‘l’ = n/2(a + l)