1
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The value of ' $a$ ' for which the equation $\left(a^2-3\right) x^2+16 x y -2 a y^2+4 x-8 y-2=0$ represents a pair of perpendicular lines is

A

2

B

-1

C

3

D

4

2
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The slope of a common tangent to the circles $x^2+y^2=16$ and $(x-9)^2+y^2=16$ is
A

$\frac{8}{\sqrt{13}}$

B

$\frac{4}{\sqrt{13}}$

C

$\frac{\sqrt{17}}{8}$

D

$\frac{8}{\sqrt{17}}$

3
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The equation of the circle whose radius is 3 and which touches the circle $x^2+y^2-4 x-6 y-12=0$ internally at $(-1,-1)$ is

A

$5 x^2+5 y^2-8 x-14 y-32=0$

B

$x^2+y^2-12 x-14 y-28=0$

C

$3 x^2+3 y^2-8 x-14 y-31=0$

D

$x^2+y^2-5 x-7 y-14=0$

4
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Suppose $C_1$ and $C_2$ are two circles having no common points, then

A

There will be 3 common tangents to $C_1$ to $C_2$

B

There will be exactly two common tangents to $C_1$ and $C_2$

C

There will be no common tangent or there will be exactly two common tangents to $C_1$ and $C_2$

D

There will be no common tangents or there will be four common tangents to $C_1$ and $C_2$

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