1
AP EAPCET 2025 - 24th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $3 \sqrt{2} x-4 y=12$ is a tangent to the hyperbola $\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$ and $\frac{5}{4}$ is its eccentricity, then $a^2-b^2=$

A

5

B

7

C

9

D

11

2
AP EAPCET 2025 - 24th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the normal drawn to the hyperbola $x y=16$ at $(8,2)$ meets the hyperbola again at a point $(\alpha, \beta)$, then $|\beta|+\frac{1}{|\alpha|}=$

A

40

B

34

C

28

D

54

3
AP EAPCET 2025 - 24th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The locus of a point at which the line joining the points $(-3,1,2),(1,-2,4)$ subtends a right angle, is

A

$x^2+y^2+z^2+2 x+y-6 z-3=0$

B

$x^2+y^2+z^2+2 x-y-6 z+3=0$

C

$x^2+y^2+z^2+2 x+y-6 z+3=0$

D

$x^2+y^2+z^2-2 x+y-6 z+3=0$

4
AP EAPCET 2025 - 24th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $A(1,2,3), B(2,3,-1), C(3,-1,-2)$ are the vertices of a $\triangle A B C$, then the direction ratios of the bisector of $\angle A B C$ are

A

$(4,1,1)$

B

$(3,5,2)$

C

$(1,4,1)$

D

$(2,-3,-5)$