1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
The solution of the differential equation $\frac{d y}{d x}+y \log y \cot x=0$ is
A
$\cos x \log y=c$
B
$\log y=c \sin x$
C
$\sin x \log y=c$
D
$y \sin x=c$
2
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
A shopkeeper sells three varieties of fruit juice. He has a large number of bottles of same size of each variety. The number of different ways of displaying all the three varieties on the shelf with 5 places in a row and each display must have at least one bottle of each variety is
A
150
B
120
C
60
D
90
3
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
The value of $\lim _\limits{x \rightarrow 0} \frac{(1-x)^n-1}{x}=$
A
n
B
0
C
$-$n
D
1
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $f(x)=\left\{\begin{array}{ll}\frac{1-x^m}{1-x} & \text { if } x \neq 1 \\ 2 m-1 & \text { if } x=1\end{array}\right.$ and the function is discontinuous at $x=1$, then
A
$m=1$
B
$m \neq \frac{1}{2}$
C
$m=\frac{1}{2}$
D
$m \neq 1$
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