1
NDA Mathematics 21 April 2024
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Let $\int \frac{d x}{\sqrt{x+1}-\sqrt{x-1}}=\alpha(x+1)^{\frac{3}{2}}+$ $$ \beta(x-1)^{\frac{3}{2}}+c $$

What is the value of $\beta$?

A

$-\frac{2}{3}$

B

$-\frac{1}{3}$

C

$\frac{1}{3}$

D

$\frac{2}{3}$

2
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is ∫(xx)(1 + ln x)dx equal to ?
A
x2x + c
B
$​\frac{1}{2}$x2x + c
C
2x2x + c
D
$​\frac{1}{2}$xx + c
3
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is ∫ex{1 + ln x + x ln x}dx equal to ?
A
x ex ln x + c
B
x2 ex ln x + c
C
x + ex ln x + c
D
xex + ln x + c
4
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is $\int\frac{(\cos x)^{1.5}−(\sin x)^{1.5}}{\sqrt{\sin x⋅\cos x}}$dx equal to ?
A
$​\sqrt{\sin \text{x}}−\sqrt{\cos \text{x}}$ + c
B
$​\sqrt{\sin \text{x}}+\sqrt{\cos \text{x}}$ + c
C
$2\sqrt{\sin \text{x}}+2 \sqrt{\cos \text{x}}$ + c
D
$​\frac{1}{2}\sqrt{\sin \text{x}}+\frac{1}{2} \sqrt{\cos \text{x}}$ + c
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