SELECT * FROM question_mgmt as q WHERE id=9503 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=6 AND chapterId=269 and ex_no='3' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th mathematics Polynomials give examples of polynomials p x g x q x and

Question:

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

Answer:

we know that 

              

(i) Deg P(x) = deg g (x)

    The degree of dividend or quotient can be equal, only if the divisor is a constant (degree 0)

    Then, let p(x) = 3x2 –  6x + 5

     Let g(x) = 3

     Therefore,  q(x) = x2 – 2x +1  and r(x) = 2

(ii) Deg  q(x)  deg r(x)    

     Let p(x) = x2 + 1

     Let g(x) = x

     Therefore, q(x) = x + 1 and r(x) = 0

     Here, we can see the degree of quotient is equal to the degree of remainder.

     Hence, division algorithm is satisfied here.

   (iii)    deg r(x) = 0

The degree of remainder is zero, only if the remainder left after division algorithm is Constant.

Let p(x) = x2 + 1

Let g(x) = x

                Therefore, q(x)= x  and r(x) = 1 

Here we can see the degree of remainder is zero.

Hence division algorithm is satisfied here.


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