1
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A function is defined as follows
$$f(x) = \left\{ {\matrix{ { - {x \over {\sqrt {{x^2}} }},} & {x \ne 0} \cr {0,} & {x = 0} \cr } } \right.$$
Which one of the following is correct in respect of the above function?
$$f(x) = \left\{ {\matrix{ { - {x \over {\sqrt {{x^2}} }},} & {x \ne 0} \cr {0,} & {x = 0} \cr } } \right.$$
Which one of the following is correct in respect of the above function?
2
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following statements
1. $$x + {x^2}$$ is continuous at x = 0
2. $$x + \cos {1 \over x}$$ is discontinuous at x = 0
3. $${x^2} + \cos {1 \over x}$$ is continuous at x = 0
Which of the above are correct?
1. $$x + {x^2}$$ is continuous at x = 0
2. $$x + \cos {1 \over x}$$ is discontinuous at x = 0
3. $${x^2} + \cos {1 \over x}$$ is continuous at x = 0
Which of the above are correct?
3
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A function is defined in (0, $$\infty$$) by
$$f(x) = \left( {\matrix{ {1 - {x^2}} & {for} & {0 < x \le 1} \cr {\ln x} & {for} & {1 < x \le 2} \cr {\ln 2 - 1 + 0.5x} & {for} & {2 < x < \infty } \cr } } \right.$$
Which one of the following is correct in respect of the derivative of the function, i.e., f'(x) ?
$$f(x) = \left( {\matrix{ {1 - {x^2}} & {for} & {0 < x \le 1} \cr {\ln x} & {for} & {1 < x \le 2} \cr {\ln 2 - 1 + 0.5x} & {for} & {2 < x < \infty } \cr } } \right.$$
Which one of the following is correct in respect of the derivative of the function, i.e., f'(x) ?
4
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If $$\mathop {\lim }\limits_{x \to {\pi \over 2}} {{\sin x} \over x} = l$$ and $$\mathop {\lim }\limits_{x \to \infty } {{\cos x} \over x} = m$$, then which one of the following is correct?
Questions Asked from Limit, Continuity and Differentiability (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Mathematics 13 April 2025 (6)
NDA Mathematics 1st September 2024 (3)
NDA Mathematics 21 April 2024 (2)
NDA Mathematics 3 September 2023 (9)
NDA Mathematics 16 April 2023 (6)
NDA Mathematics 4 September 2022 (4)
NDA Mathematics 10 April 2022 (3)
NDA Mathematics 14 November 2021 (5)
NDA Mathematics 18 April 2021 (5)
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