1
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The product of the perpendiculars from the two points ($$\pm$$ 4, 0) to the line 3x cos$$\phi$$ + 5y sin$$\phi$$ = 15 is
A
25
B
16
C
9
D
8
2
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Two straight lines passing through the point A(3, 2) cut the line 2y = x + 3 and X-axis perpendicularly at P and Q, respectively. The equation of the line PQ is
A
7x + y $$-$$ 21 = 0
B
x + 7y + 21 = 0
C
2x + y $$-$$ 8 = 0
D
x + 2y + 8 = 0
3
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
An equilateral triangle has one vertex at (0, 0) and another at (3, $$\sqrt 3 $$). What are the coordinates of the third vertex?
A
(0, 2$$\sqrt 3 $$) only
B
(3, $$-$$$$\sqrt 3 $$) only
C
(0, 2$$\sqrt 3 $$) or (3, $$-$$ $$\sqrt 3 $$)
D
Neither (0, 2$$\sqrt 3 $$) nor (3, $$-$$ $$\sqrt 3 $$)
4
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
What is the equation of the right bisector of the line segment joining (1, 1) and (2, 3) ?
A
2x + 4y $$-$$ 11 = 0
B
2x $$-$$ 4y $$-$$ 5 = 0
C
2x $$-$$ 4y $$-$$ 11 = 0
D
x $$-$$ y + 1 = 0
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