1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
If $\sin^{-1} x + \sin^{-1} y = \dfrac{\pi}{2}$, then $x^2$ is equal to
A
$1 - y^2$
B
$\sqrt{1 - y^2}$
C
$-\sqrt{1 - y^2}$
D
$1 + y^2$
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
$f(x) = (x-1)^2$ for $x \geq 1$, $g(x)$ is a function whose graph is the reflection of the graph of $f(x)$ in the line $y = x$, then $g(x)$ is
A
$-\sqrt{x} + 1$
B
$\sqrt{x} - 1$
C
$\sqrt{x} + 1$
D
$\sqrt{x - 1}$
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The domain of the function $\sqrt{\dfrac{x-7}{9-x}}$ is
A
$[7, 9]$
B
$[7, 9)$
C
$(7, 9]$
D
$(7, 9)$
4
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
$a = -5, b = 8$