1
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If x, y, z are in GP, then which of the following is/are correct?
1. ln(3x), ln(3y), ln(3z) are in AP
2. xyz + ln(x), xyz + ln(y), xyz + ln(z) are in HP
Select the correct answer using the code given below.
2
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If log102, log10(2x - 1), log10(2x + 3) are in AP, then what is x equal to?
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If p = (1111 ... up to n digits), then what is the value of 9p2 + p?
4
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If an = n(n!), then what is a1 + a2 + a3 +...+ a10 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