1
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The fifth term of an AP of n terms, whose sum is n2 $$-$$ 2n, is
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The sum of all the two-digit odd numbers is
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The sum of the first n terms of the series $${1 \over 2} + {3 \over 4} + {7 \over 8} + {{15} \over {16}} + ....$$ is equal to
4
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If an infinite GP has the first term x and the sum 5, then which one of the following is correct?
Questions Asked from Sequence And Series (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