1
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The sum of the infinite terms of the series $\cot ^{-1}\left(1^2+\frac{3}{4}\right)+\cot ^{-1}\left(2^2+\frac{3}{4}\right)$ $+\cot ^{-1}\left(3^2+\frac{3}{4}\right)+\ldots$ is equal to

A
$\tan ^{-1}(1)$
B
$\tan ^{-1}(2)$
C
$\tan ^{-1}(3)$
D
$\tan ^{-1}(4)$
2
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

$\lim _\limits{x \rightarrow 0} \frac{1}{x} \int_0^x(1+\sin 3 t)^{\frac{1}{t}} d t$ is equal to

A
2
B
1
C
$e^2$
D
$e^3$
3
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

If the curves $\frac{x^2}{a}+\frac{y^2}{4}=1$ and $y^3=16 x$ intersect at right angles, then ' $a$ ' equals to

A
$\frac{3}{4}$
B
$\frac{1}{2}$
C
$\frac{4}{3}$
D
$2$
4
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

$\tan 65^{\circ}, \tan 40^{\circ}+\tan 25^{\circ}$ and $\tan 25^{\circ}$ are in

A
AP
B
GP
C
HP
D
None of these
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