1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $\sin A+\sin B=-\frac{21}{65}, \cos A+\cos B=-\frac{27}{65}$ and $\pi
A
$\frac{3}{\sqrt{130}}$
B
$\frac{6}{65}$
C
$-\frac{6}{65}$
D
$-\frac{3}{\sqrt{130}}$
2
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $A=\left[\begin{array}{ccc}0 & 1 & -2 \\ -1 & 0 & 3 \\ 2 & -3 & 0\end{array}\right]$ then $A^{-1}$
A
equal to $-\frac{1}{12}(\operatorname{adj} A)$
B
equal to $-$12
C
equal to $\frac{1}{12}(\operatorname{adj} A)$
D
doesn't exit
3
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Area of the region bounded by the curve $y=\sin \left(\frac{x}{2}\right)$ between $-4 \pi$ and 0 is
A
4 sq units
B
8 sq units
C
6 sq units
D
1 sq units
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
$\int \log x^2 d x=$
A
$\log x^2+x+c$
B
$x \log x^2-1+c$
C
$x \log x^2+x+c$
D
$x \log x^2-2 x+c$
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