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Find the inverse point of P(-2,3) with the circle x²+y²-4x-6y+9=0​

Answer»

The inverse point of P(-2,3) with the circle x²+y²-4x-6y+9=0​ is (1,3)

Step-by-step explanation:

The given equation of the circle is

x^2+y^2-4x-6y+9=0

\implies (x^2-2\times2x+4)+(y^2-2\times 3y+9)+9-4-9=0

\implies x^2-2\times x\times 2+2^2)+(y^2-2\times y]times 3+3^2)=4

\implies (x-2)^2+(y-3)^2=2^2

Clearly, we can say that the centre of the circle is (2,3) and radius is 2 units

We KNOW that inverse of a point P (x',y') w.r.t. a circle with centre at (h,k) and radius r is point (x",y") such that

x

And, y

Where,

\alpha=\frac{r^2}{(x'-h)^2+(y'-k)^2}

The given point is (-2,3)

Thus,

\alpha=\frac{4}{(-2-2)^2+(3-3)^3}

\implies \alpha=\frac{1}{4}

Therefore,

the x-COORDINATE of the inverse point

x

\implies x

The y-coordinate of the inverse point

x

\implies y

Therefore, the coordinate of the inverse point is (1,3)

Hope this answer is helpful.

Know More:

Q: The inverse of (1,3) with the RESPECT of the circle x2+y2-4x-6y+9=0

Click Here: brainly.in/question/17419666



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