1
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The lines 2x = 3y = $$-$$ z and 6x = $$-$$ y = $$-$$ 4z
2
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The radius of the sphere $$3{x^2} + 3{y^2} + 3{z^2} - 8x + 4y + 8z - 15 = 0$$ is
3
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The direction ratios of the line perpendicular to the lines with direction ratios < 1, $$-$$2, $$-$$2 > and < 0, 2, 1 > are
4
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
What are the coordinates of the foot of the perpendicular drawn from the point (3, 5, 4) on the plane z = 0 ?
Questions Asked from Three Dimensional Geometry (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Subjects
Mathematics
Algebra
Sets, Relations and Functions Logarithms Quadratic Equations and Inequalities Sequence And Series Binomial Theorem Matrices Determinants Permutations and Combinations Probability Complex Numbers Vector Algebra Three Dimensional Geometry Statistics
Trigonometry
Trigonometric Angles and Equations Inverse Trigonometric Function Height and Distance Properties of Triangles
Coordinate Geometry
Calculus
English
General Studies