1
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)
2
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
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
ABCDEFGH is a cuboid with base ABCD. Let A(0, 0, 0), B(12, 0, 0), C(12, 6, 0) and G(12, 6, 4) be the vertices. If α is the angle between AB and AG; β is the angle between AC and AG, then what is the value of cos 2α + cos 2β?
4
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
What is the angle between the two lines having direction ratios (6, 3, 6) and (3, 3, 0)?
Questions Asked from Three Dimensional Geometry (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Subjects
Mathematics
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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
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