1
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

The coordinates of the foot of the perpendicular drawn from the point (3, 4) on the line $$2x+y-7=0$$ is

A
(1, 5)
B
$$\left(\frac{9}{5},\frac{17}{5}\right)$$
C
(1, $$-$$5)
D
($$-5$$, 1)
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

The area enclosed by the pair of lines $$xy=0$$, the line $$x-4=0$$ and $$y+5=0$$ is

A
10 sq units
B
20 sq units
C
0 sq units
D
$$\frac{5}{4}$$ sq units
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

If the area of the auxillary circle of the ellipse $${{{x^2}} \over {{a^2}}} + {{{y^2}} \over {{b^2}}} = 1(a > b)$$ is twice the area of the ellipse, then the eccentricity of the ellipse is

A
$${{\sqrt 3 } \over 2}$$
B
$${1 \over {\sqrt 2 }}$$
C
$${1 \over 2}$$
D
$${1 \over {\sqrt 3 }}$$
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

A graph G has m vertices of odd degree and ‘n’ vertices of even degree. Then which of the following statements is necessarily true?

A
$$m+n$$ is an even number
B
$$m+n$$ is an odd number
C
$$m+1$$ is an odd number
D
$$n+1$$ is an even number
EXAM MAP