1
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The line $$a x+b y+c=0$$ will be a tangent to the circle $$x^2+y^2=r^2$$, then

A
$$a^2+b^2=c^2 r^2$$
B
$$c^2=a^2+b^2$$
C
$$c^2=r^2\left(a^2+b^2\right)$$
D
$$\left(c^2+a^2\right)=b^2 r^2$$
2
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The image of the point $$(2,3,7)$$ in the plane $$2 x+5 y-3 z-19=0$$, is

A
$$\left(\frac{78}{19}, \frac{157}{19}, \frac{73}{19}\right)$$
B
$$(4,8,4)$$
C
$$\left(\frac{3}{2}, \frac{5}{2}, 4\right)$$
D
$$\left(\frac{80}{19}, \frac{162}{19}, \frac{70}{19}\right)$$
3
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The distance between the point $$(7,2,4)$$ and the plane determined by the points $$(2,5,-3),(-2,-3,5)$$ and $$(5,3,-3)$$ is

A
$$\sqrt{29}$$
B
$$\frac{29}{5}$$
C
29
D
6
4
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The value of $$\int_\lambda^{\lambda+\pi / 2}\left(\cos ^4 x+\sin ^4 x\right) d x$$ is

A
$$\lambda\left(\frac{\pi}{2}\right)^2$$
B
$$\frac{3 \pi}{4}$$
C
$$\frac{3 \pi}{8}$$
D
$$\left(\frac{3 \pi}{8}\right) \lambda^2$$
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