1
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+2
-0

If the standard deviation of data is 12 and mean is 72, then coefficient of variation is

A
15.67%
B
14.67%
C
13.67%
D
16.67%
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+2
-0

If $$x=a(\theta+\sin \theta)$$ and $$y=a(1-\cos \theta)$$ then $$\left(\frac{d^2 y}{d x^2}\right)_{at~ \theta=\pi / 2}=$$

A
$$\frac{a}{2}$$
B
$$\frac{1}{\mathrm{a}}$$
C
$$\mathrm{a}$$
D
$$2 \mathrm{a}$$
3
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+2
-0

If $$\sin (y+z-x), \sin (z+x-y)$$ and $$\sin (x+y-z)$$ are in AP, then

A
$$\tan y=\tan x+\tan z$$
B
$$\tan y=\tan x-\tan z$$
C
$$2 \tan y=\tan x+\tan z$$
D
$$2 \tan y=\tan x-\tan z$$
4
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+2
-0

The negation of inverse of $$\sim \mathrm{p} \rightarrow \mathrm{q}$$ is

A
$$\sim \mathrm{p} \wedge \mathrm{q}$$
B
$$\sim \mathrm{q} \rightarrow \mathrm{p}$$
C
$$p \wedge(\sim q)$$
D
$$\mathrm{p} \wedge \mathrm{q}$$
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