Question

Which of the following expressions is not a polynomial?
(i) 10 – 13x
(ii) z + z2 + z5 - 7

(iii) 1 + 1/a + 1/a2 + 1/a3 +1/a4

(iv) (m2 + m – 2)/(m – 3)

Answer 1

Answer:

III) 1+1/a+1/a2+1/a3+1/a4

please explain this answer