NCERT Solutions Class 9 Maths Chapter 2 Polynomials

Exercise 2.1 Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer:-(i) 4×2– 3x + 7(ii) y2+√2(iii) 3√t+t√ 2(iv) y+(v) x10+y3+t50Sol:- (i) 4×2–3x+7 is a polynomial in one variable. The equation 4×2–3x+7 can be written as 4×2–3×1+7×0 and since x is the only variable in the given equation […]

Ncert solution Class 9 Maths Chapter 1 Number Systems

Exercise 1.1 Is zero a rational number? Can you write it in the form p/q,where p and q are integers and q ≠0 ?Ans:- Yes zero is a rational number.we can write zero as :-0/1, 0/2Thus we can write 0 in the form of p/q where p and q are integers and q ≠0 . Hence, […]