1
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The sum of the series $$3 - 1 + {1 \over 3} - {1 \over 9} + .......$$ is equal to
2
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Let Tr be the rth term of an AP for r = 1, 2, 3, ...... If for some distinct positive integers m and n we have Tm = 1 / n and Tn = 1 / m, then what is Tmn equal to?
3
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If the second term of a GP is 2 and the sum of its infinite terms is 8, then the GP is
4
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If a, b, c are in AP or GP or HP, then $${{a - b} \over {b - c}}$$ is equal to
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