Question

Which of the following is a polynomial ? (a) 1/x+1 (b) 1/√x+1 (c) 1/x²+x+1 (d) x³+1

Answer 1

D is the only polynomial expression.

Explanation:

A polynomial expression only consists of terms in the form `cx^d` where `d` is a positive integer. Therefore, all polynomial expressions can be written as:

`sum_(i=0)^na_ix^i`