1
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $(\alpha, \beta)$ is the external centre of similitude of the circles $x^2+y^2=3$ and $x^2+y^2-2 x+4 y+4=0$, then $\frac{\beta}{\alpha}=$

A

-3

B

-2

C

2

D

3

2
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The equation of the circle touching the lines $|x-2|+|y-3|=4$ is

A

$x^2+y^2-6 x-4 y+5=0$

B

$x^2+y^2-4 x-6 y+5=0$

C

$x^2+y^2-x-2 y-5=0$

D

$x^2+y^2-2 x-y-5=0$

3
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the chord joining the points $(1,2)$ and $(2,-1)$ on a circle subtends an angle of $\frac{\pi}{4}$ at any point on its circumference, then the equation of such a circle is

A

$x^2+y^2+6 x-2 y+5=0$

B

$x^2+y^2-6 x-2 y+5=0$

C

$x^2+y^2-6 x+2 y+5=0$

D

$x^2+y^2+6 x+2 y+5=0$

4
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The equation of the circle which cuts all the three circles $4(x-1)^2+4(y-1)^2=1,4(x+1)^2+4(y-1)^2$ and $4(x+1)^2+4(y+1)^2=1$ orthogonally is

A

$4 x^2+4 y^2=49$

B

$4(x-1)^2+4(y+1)^2=1$

C

$(x-1)^2+(y+1)^2=4$

D

$4 x^2+4 y^2=7$