1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
If $f(x) = \begin{cases} ax + 7 & \text{if } x < 1 \\ 3x - 1 & \text{if } x = 1 \\ \dfrac{b}{x + 3} & \text{if } x > 1 \end{cases}$ is continuous at $x = 1$, then
A
$a = -5, b = 2$
B
$a = -5, b = -2$
C
$a = 5, b = -2$
D
$a = -5, b = 8$
2
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
$0$
3
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
$\dfrac{\sec^2 x}{3y^2 - 1}$
4
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
$4$