1
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The equation $$3 \cos ^{-1} x-\pi x-\pi / 2=0$$ has

A
one negative solution
B
one positive solution
C
no solution
D
more than one solution
2
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The area enclosed by $$y=x^3+1$$ and $$y=x+2$$ in first quadrant, is

A
2.86
B
1.43
C
1.40
D
1.86
3
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

If $$R$$ is a relation from a finite set A having $$m$$ elements to finite set $$B$$ having $$n$$ elements, then the number of relation from $$A$$ to $$B$$ is

A
$$2^{m n}$$
B
$$2^{m n}-1$$
C
$$2 m n$$
D
$$m^n$$
4
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

If $$\sin A, \sin B$$ and $$\cos A$$ are in GP, then the roots of $$x^2+2 x \cot B+1=0$$ are always

A
real
B
imaginary
C
greater than 1
D
equal
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