1
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following statements in respect of the function f(x) = x + $\rm \frac{1}{x}$:

1. The local maximum value of f(x) is less than its local minimum value.

2. The local maximum value of f(x) occurs at x = 1.

Which of the above statements is/are correct?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
2
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the maximum area of a rectangle that can be inscribed in a circle of radius 2 units?
A
4 square units
B
6 square units
C
8 square units
D
16 square units
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is $\rm \int \frac{dx}{x(x^2 + 1)}$ equal to?
A
$\rm \frac{1}{2}ln\left(\frac{x^2}{x^2 + 1}\right) + C$
B
$\rm ln\left(\frac{x^2}{x^2 + 1}\right) + C$
C
$\rm \frac{3}{2}ln\left(\frac{x^2}{x^2 + 1}\right) + C$
D
$\rm \frac{1}{2}ln\left(\frac{x^2+1}{x^2}\right) + C$
4
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the derivative of $\rm e^{e^x}$ with respect to ex?
A
$\rm e^{e^x}$
B
ex
C
$\rm e^{e^x}$ex
D
eex
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