1.

Which of the following is the representation of a plane algebraic curve of nth degree?

A. f(x,y)=ay<sup>n</sup>+(bx+c) y<sup>n-1</sup>+(dx<sup>2</sup>+ex+f) y<sup>n-2</sup>+ +u<sub>n</sub> (x)=0
B. f(x,y)=ay<sup>n-1</sup>+(bx+c) y<sup>n-2</sup>+(dx<sup>2</sup>+ex+f) y<sup>n-3</sup>+ +u<sub>n</sub> (x)=0
C. f(x,y)=ay<sup>n</sup>+by<sup>n-1</sup>+cy<sup>n-2</sup>+ +u<sub>n</sub> (x)=0
D. f(x,y)=ay<sup>n</sup>+(bx+c) y<sup>n</sup>+(dx<sup>2</sup>+ex+f) y<sup>n</sup>+ +u<sub>n</sub> (x)=0
Answer» B. f(x,y)=ay<sup>n-1</sup>+(bx+c) y<sup>n-2</sup>+(dx<sup>2</sup>+ex+f) y<sup>n-3</sup>+ +u<sub>n</sub> (x)=0


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