Give examples of polynomials $p(x), g(x), q(x)$ and $r(x)$, which satisfy the division algorithm and(i) deg $p(x) =$ deg $q(x)$
(ii) deg $q(x) =$ deg $r(x)$
(iii) deg $r(x) = 0$
To do:
We have to give examples of polynomials $p(x), g(x), q(x)$ and $r(x)$, which satisfy the division algorithm and
(i) deg $p(x) =$ deg $q(x)$
(ii) deg $q(x) =$ deg $r(x)$
(iii) deg $r(x) = 0$
Solution:
(i) $p(x), g(x), q(x), r(x)$
deg $p(x) =$ deg $q(x)$
Both $g(x)$ and $r(x)$ are constant terms.
$p(x) = 2x^2+2x + 4$
$g(x) = 2$
$q(x) = x^2 + x + 2$
$r(x) = 0$
(ii) $p(x), g(x), q(x), r(x)$
deg $q(x) =$ deg $r(x)$
This is possible when degrees of both $q(x)$ and $r(x)$ are less than $p(x)$ and $g(x)$.
$p(x) = x^3+ x^2 + x + 1$
$g(x) = x^2 - 1$
$q(x) = x + 1$
$r(x) = x + 2$
(iii) $p(x), g(x), q(x), r(x)$
deg $r(x) = 0$
This is possible when product of $q(x)$ and $g(x)$ form a polynomial whose degree is equal to degree of $p(x)$ and constant term.
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