Exercise 2.1class 9 Maths NCERT Solutions Chapter 2 Polynomial

Class 9 Maths NCERT Solutions Chapter 2: Polynomial is developed and witten by our expert teachers. Students can study our solutions of Chapter 2: Polynomial class 9 Maths, Question 1. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer. (i) 4x2 – 3x + 7 (ii) y2 + √2 (iii) 3√t + t√ 2 (iv) y +2/y (v) x10 + y3 + t50, Question 2. Write the coefficients of x2 in each of the following: (i) 2 + x2 + x (ii) 2 – x2 + x3 (iii) (pi/2 )x2+ x (iv) √2x – 1 , Question 3. Give one example each of a binomial of degree 35, and of a monomial of degree 100., Question 4. Write the degree of each of the following polynomials: (i) 5x3 + 4x2 + 7x (ii) 4 – y2 (iii) 5t – √7 (iv) 3, Question 5. Classify the following as linear, quadratic and cubic polynomials: (i) x2 + x (ii) x – x3 (iii) y + y2 + 4 (iv) 1 + x (v) 3t (vi) r2 .

NCERT Solutions Class 9 Maths
Chapter 2: Polynomial
Exercise 2.1 Answers

Question 1. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer. (i) 4x² – 3x + 7 (ii) y² + √2 (iii) 3√t + t√ 2 (iv) y +2/y (v) x¹⁰ + y³ + t⁵⁰
Question 2. Write the coefficients of x2 in each of the following: (i) 2 + x² + x (ii) 2 – x² + x³ (iii) (pi/2 )x²+ x (iv) √2x – 1
Question 3. Give one example each of a binomial of degree 35, and of a monomial of degree 100.
Question 4. Write the degree of each of the following polynomials: (i) 5x³ + 4x² + 7x (ii) 4 – y² (iii) 5t – √7 (iv) 3
Question 5. Classify the following as linear, quadratic and cubic polynomials: (i) x² + x (ii) x – x³ (iii) y + y² + 4 (iv) 1 + x (v) 3t (vi) r²