Posted inClass 10th math NCERT
Polynomials all formula
Polynomials definition, formula and types Class -10 chapter – 2, Polynomials(A) What is a quantity?A quantity is a thing which can be measured. There are two types of quantities:- (1)…
NCERT, Class 10, Quadratic Equations, Chapter–4, Exercise-4.3 – Step wise solution of every question with proper explanation
Q. 1. Find the nature of the roots of the following quadratic equations. If the real roots exist, find them: (i) 2x^2 – 3x + 5 = 0, (ii) 3x^2…
NCERT, Class 10, Quadratic Equations, Chapter–4, Exercise-4.2 – Step wise solution of each question with complete explanation
Q. 1. Find the roots of the following quadratic equations by factorization: (i) x^2–3x–10=0, (ii) 2x^2+x–6=0, (iii) √2x^2+7x+5√2=0, (iv) 2x^2–x+1/8 =0, (v) 100x^2 –20x+1=0; Q. 2. Solve the problems given…
Posted inClass 10th math NCERT Quadratic Equations Chapter - 4 Theory related to Quadratic Equations
Some facts about the Quadratic Equation we should know:
(1) When an equation will be a Quadratic Equation? (2) What is a constant quantity; (3) What is a constant term; (4) What is a variable quantity; (5) What is…
Posted inClass 10th math NCERT Pair of Linear Equations in Two Variables chapter -3 Pair of Linear Equations in Two Variables Exercise 3.3
NCERT, Class 10, Pair of Linear Equations in Two Variables, Chapter–3, Exercise-3.3 – Step wise solution of each question with complete explanation
Q. 1. Solve the following pair of linear equations by the elimination and the substitution method: (i) x+y=5 and 2x–3y=4, (ii) 3x+4y=10 and 2x–2y=2 (iii) 3x–5y–4=0 and 9x=2y+7 (iv) x/2…
Algebraic Identities
(1) (a+b)2=a2+b2+2ab, (2) (a+b+c)2=a2+b2+c2+2ab+2bc+2ca, (3) (a+b)3=a3+b3+3ab(a+b), (4) a3+b3+c3–3abc=(a+b+c)(a2+b2+c2–ab–bc–ca), (5) a2–b2=(a+b)(a–b), (6) a3+b3=(a+b)(a2+b2–ab), (7) a3–b3=(a–b)(a2+b2+ab), (8) Constant quantities; (9) Variable quantities; (10) Constant term; (11) Equation
NCERT, Class-10th, Chapter-2, Polynomials, Exercise-2.1- Proper solution of each question on graph paper
Q.1. The graphs of y= p(x) are given in figure, for some polynomials p(x). Find the number of zeroes of p(x), in each case.
NCERT, Class 9, Number Systems, Chapter–1, Exercise-1.4 – Stepwise clear solution of each question
Q.1. Classify the following numbers as rational or irrational: (i) 2–√5, (ii) (3+√23) –√23, (iii) (2√7)/(7√7),(iv) 1/(√2), (v) 2π ; Q.2. Simplify each of the following expressions: (i) (3 +…
NCERT, Class 10, Polynomials, Chapter–2, Exercise-2.2 – Stepwise proper explanation of each question
Q.1. Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and coefficient. (i) x^2–2x–8 , (ii) 4s^2–4s + 1, (iii) 6x^2– 3 – 7x,…