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madam [21]
3 years ago
9

Find the general form, Ax2+Ay2+Dx+Ey+F=0, by identifying the coefficients A,D,E,&F center:(0,1); r=1 (x-0)2+(y-1)2=1 x2+y2-2

y+1-1=0 x2+y2-2y=0 A= Blank D = Blank E= Blank F =
Mathematics
2 answers:
siniylev [52]3 years ago
6 0

Answer:

The value of A is 1, D is 0, E is -2 and F is 0.

Step-by-step explanation:

The given equation is

Ax^2+Ay^2+Dx+Ey+F=0             ...(1)

The standard form of the circle is

(x-h)^2+(y-k)^2=r^2

Where, (h,k) is the center of the circle and r is the radius.

(x-0)^2+(y-1)^2=1

x^2+y^2-2y+1-1=0

x^2+y^2-2y=0

It can be written as

x^2+y^2+0x-2y+0=0                          ....(2)

On comparing (1) and (2) we get.

A=1

D=0

E=-2

F=0

Therefore the value of A is 1, D is 0, E is -2 and F is 0.

marishachu [46]3 years ago
4 0

Answer:

A= 1 , B= 1 , D=0 , E =  -2 , F = 0

Step-by-step explanation:

Given : General equation of circle as

Ax^2+By^2+Dx+Ey+F=0

Also given Center of circle as (0, 1) and radius r = 1

We have to find the value of coefficient A , B , D, E and F.

Equation of circle having center at (h,k) and radius r is given by,

(x-h)^2+(y-k)^2=r^2

Substitute values

h = 0 , k = 1 , r = 1

we get,

\Rightarrow (x-0)^2+(y-1)^2=(1)^2

Using algebraic identity , (a-b)^2=a^2-2ab+b^2 , we get

\Rightarrow x^2+y^2+1-2y=1

Solving , we get,

\Rightarrow x^2+y^2-2y=0

Comparing with given general form , we get,

A= 1 , B= 1 , D=0 , E =  -2 , F = 0

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