1
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

The condition in order that $$Z_1, Z_2, Z_3$$ are vertices of an isosceles triangle right angled at $$z_2$$, is

A
$$\left(Z_1-Z_3\right)^2=3\left(Z_1-Z_2\right)\left(Z_2-Z_3\right)$$
B
$$\left(Z_1-Z_3\right)^2=3\left(Z_2-Z_1\right)\left(Z_2-Z_3\right)$$
C
$$\left(Z_1-Z_3\right)^2=2\left(Z_1-Z_2\right)\left(Z_2-Z_3\right)$$
D
$$\left(Z_1-Z_3\right)^2=2\left(Z_2-Z_1\right)\left(Z_2-Z_3\right)$$
2
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

If the tangent at point $$P$$ on the circle $$x^2+y^2+6 x+6 y-2=0$$ meets the straight line $$5 x-2 y+6=0$$ at a point $$Q$$ on $$Y$$-axis, the length of $$P Q$$ is

A
4
B
$$2 \sqrt{5}$$
C
5
D
$$3 \sqrt{5}$$
3
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

The image of the point $$(2,-3,4)$$ with respect to the plane $$4 x+2 y-4 z+3=0$$, is

A
$$\left(\frac{-16}{9}, \frac{14}{9}, \frac{40}{9}\right)$$
B
$$\left(\frac{40}{9}, \frac{-16}{9}, \frac{14}{9}\right)$$
C
$$\left(\frac{14}{9}, \frac{-16}{9}, \frac{40}{9}\right)$$
D
$$\left(\frac{40}{9}, \frac{14}{9}, \frac{-16}{9}\right)$$
4
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

If a variable plane cuts the coordinate axes in $$A, B, C$$ and is at constant distance $p$ from the origin, then the locus of the centroid of the tetrahedron $$A B C$$ is equal to

A
$$x^{-2}+y^{-2}+z^{-2}=16 p^2$$
B
$$x^{-2}+y^{-2}+z^{-2}=8 p^2$$
C
$$x^{-2}+y^{-2}+z^{-2}=16 p^{-2}$$
D
$$x^{-2}+y^{-2}+z^{-2}=8 p^{-2}$$
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