1
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+2
-0

If $x=\sin \theta, y=\sin ^3 \theta$, then $\frac{d^2 y}{d x^2}$ at $\theta=\frac{\pi}{6}$ is

A
$\frac{1}{2}$
B
$\frac{\sqrt{3}}{2}$
C
3
D
6
2
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+2
-0
If $x=\mathrm{e}^{\tan ^{-1}\left(\frac{y-x^2}{x^2}\right)}$, then $\frac{\mathrm{d} y}{\mathrm{~d} x}$ at $x=1$ is
A
1
B
0
C
2
D
3
3
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+2
-0
The difference between the maximum value and minimum value of objective function $\mathrm{z}=3 x+5 y$ subject to constraints $x+3 y \leq 60$, $x+y \geq 10, x-y \geq 0, x, y \geq 0$ is
A
60
B
20
C
40
D
80
4
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+2
-0

If $\bar{a}=\frac{1}{\sqrt{10}}(3 \hat{i}+\hat{k})$ and $\bar{b}=\frac{1}{7}(2 \hat{i}+3 \hat{j}-6 \hat{k})$, then the value of $(2 \overline{\mathrm{a}}-\overline{\mathrm{b}}) \cdot((\overline{\mathrm{a}} \times \overline{\mathrm{b}}) \times(\overline{\mathrm{a}}+2 \overline{\mathrm{~b}}))=$

A
3
B
-3
C
5
D
-5

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