1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
If $f(x) = \sin^{-1}\left(\dfrac{2x}{1 + x^2}\right)$, then $f'\left(\dfrac{1}{2}\right) = $
A
$\dfrac{8}{5}$
B
$\dfrac{5}{8}$
C
$\dfrac{4}{5}$
D
$0$
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
If $y = \sqrt[3]{\tan x + y}$, then $\dfrac{dy}{dx} = $
A
$\dfrac{\tan x}{3y^2 - 1}$
B
$\dfrac{\sec^2 x}{3y - 1}$
C
$\dfrac{\tan x}{3y - 1}$
D
$\dfrac{\sec^2 x}{3y^2 - 1}$
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
A YouTube short video is getting viral according to $f(t) = -2t^3 + 3t^2 + 5$. At what time does the video get maximum number of shares? ($t$ is in hours)
A
$1$
B
$2$
C
$3$
D
$4$
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
In a Mahakumbh, a drone camera is moving along $3y = x^3 - 3$. When $y$-coordinate changes $9$ times as fast as $x$-coordinate, it captures good quality pictures. Then one of the precise positions of the drone at that instant is
A
$(-3, -8)$
B
$(3, -8)$
C
$(3, 8)$
D
$(-3, 8)$