1
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
2
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

If $P=\operatorname{cosec} \frac{\pi}{8}+\operatorname{cosec} \frac{2 \pi}{8}+\operatorname{cosec} \frac{3 \pi}{8}$ $+\operatorname{cosec} \frac{13 \pi}{8}+\operatorname{cosec} \frac{14 \pi}{8}+\operatorname{cosec} \frac{15 \pi}{8}$ and $\phi=8 \sin \frac{\pi}{18} \sin \frac{5 \pi}{18} \sin \frac{7 \pi}{18}$, then the value of $P+Q$ is

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

Difference between the maximum and minimum values of $f(x)=-\sin ^3 x+3 \sin ^2 x+5$ in $x \in\left[0, \frac{\pi}{2}\right]$ is

A
2
B
4
C
6
D
7
4
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

If $e$ is the eccentricity of hyperbola $\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$ and $\theta$ is the angle between the asymptotes, then $\cos \frac{\theta}{2}$ is

A
$\frac{1}{e}$
B
$\frac{1}{\sqrt{e}}$
C
$-\frac{1}{e}$
D
$\frac{1}{\sqrt{e^2+2}}$
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