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Class 9
Maths :-NCERT Solutions - Polynomials

Page No 32:
Question 4:
Write the degree of each of the following polynomials:
(i)  (ii) 
(iii)  (iv) 3

Answer:

Degree of a polynomial is the highest power of the variable in the polynomial.
(i) 
This is a polynomial in variable x and the highest power of variable x is 3. Therefore, the degree of this polynomial is 3.
(ii) 
This is a polynomial in variable y and the highest power of variable y is 2. Therefore, the degree of this polynomial is 2.
(iii) 
This is a polynomial in variable t and the highest power of variable t is 1. Therefore, the degree of this polynomial is 1.
(iv) 3
This is a constant polynomial. Degree of a constant polynomial is always 0.