NCERT Mathematics Class 9

Exercise 2.4 NCERT Class 9 contains a total of 16 questions. The questions are based on the topic: Algebraic Identities.   Algebraic Identities: Identity I: (x+y)2=x2+2xy+y2 Identity II: (x−y)2=x2−2xy+y2 Identity III: x2−y2=(x+y)(x−y) Identity IV: (x+a)(x+b)=x2+(a+b)x+ab Identity V: (x+y+z)2=x2+y2+z2+2xy+2yz+2zx Identity VI: (x+y)3=x3+3x2y+3xy2+y3 Identity VII: (x−y)3=x3−3x2y+3xy2−y3 Identity VIII: x3+y3+z3−3xyz=(x+y+z)(x2+y2+z2−xy−yz−zx) Download NCERT Class 9 Book Exercise 2.4 NCERT … Read more

Exercise 2.1 NCERT Class 9 contains a total of five questions. The questions are based on the following topics. Algebraic Expressions Terms of an Algebraic Expression Polynomials in one variable Coefficient of a term in a polynomial Degree of polynomials Number of terms in a polynomial Linear, quadratic and cubic polynomials Download NCERT Class 9 … Read more