1. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.(i) (4x^2-3x+7) (ii) (y^2+sqrt 2) (iii) (3sqrt t+tsqrt 2) (iv) (y+{2over y}) PolynomialsExercise 2.1 Previous Next Class 9PolynomialsExercise 2.11. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.(i) (4x^2-3x+7) (ii) (y^2+sqrt 2) (iii) (3sqrt t+tsqrt 2) (iv) (y+{2over y})2. Write the coefficients of (x^2) in each of the following:(i) (2+x^2+x)(ii) (2-x^2+x^3) (iii) ({piover{2}}x^2+x)(iv) (sqrt 2x-1)(v) (x^{10}+y^3+t^{50})3. Give one example each of a binomial of degree 35, and of a monomial of degree 100.4. Write the degree of each of the following polynomials:(i) (5x^3+4x^2+7x)(ii) (4-y^2)(iii) (5t-sqrt 7)(iv) 35. Classify the following as linear, quadratic and cubic polynomials:(i) (x^2+x)(ii) (x-x^3) (iii) (y+y^2+4)(iv) (1+x)(v) (3t) (vi) (r^2) (vii) (7x^3)