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If x5+2x4+x+6x^5+2x^4+x+6is divided by g(x), and quotient is x2+5x+7x^2+5x+7, then the positive degree of g(x) is :

A2

B3

C4

D5

Answer:

B. 3

Read Explanation:

g(x)=x5+2x4+x+6x2+5x+7g(x)=\frac{x^5+2x^4+x+6}{x^2+5x+7}

To find the degree consider x5/x2x^5/x^2

x5x2=x52=x3\frac{x^5}{x^2}=x^{5-2}=x^3

Degree of g(x) =3


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