1
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
The locus of a point P(x, y, z) which moves in such a way that z = 7 is a
2
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following statements:
1. A-line in space can have infinitely many direction ratios.
2. It is possible for certain lines that the sum of the squares of direction cosines can be equal to the sum of its direction cosines.
Which of the above statements is/are correct?
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
The xy-plane divides the line segment joining the points (-1, 3, 4) and (2, -5, 6)
4
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
The number of spheres of radius r touching the coordinate axes is
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