1
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The complex number $z$ satisfying $z+|z|$ $=1+7 i$, then the value of $|z|^2$ equals

A
625
B
169
C
49
D
25
2
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

Two red counters, three green counters and four blue counters are placed in a row in random order. The probability that no two blue counters are adjacent is

A
$\frac{7}{99}$
B
$\frac{7}{198}$
C
$\frac{5}{42}$
D
None of these
3
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The differential equation corresponding to the family of curves $y=e^x(a x+b)$ is

A
$\frac{d^2 y}{d x^2}+Z \frac{d y}{d x}-y=0$
B
$\frac{d^2 y}{d x^2}-2 \frac{d y}{d x}+y=0$
C
$\frac{d^2 y}{d x^2}+2 \frac{d y}{d x}+y=0$
D
$\frac{d^2 y}{d x^2}-2 \frac{d y}{d x}-y=0$
4
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The value of $$\sin ^{-1}\left\{\cot \left(\sin ^{-1} \sqrt{\frac{2-\sqrt{3}}{4}}+\cos ^{-1} \frac{\sqrt{12}}{4}+\sec ^{-1} \sqrt{2}\right)\right\}$$ is

A
5
B
6
C
0
D
10
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