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

If the slopes of the lines given by the equation $$a x^2+2 h x y+b y^2=0$$ are in the ratio $$5: 3$$, then the ratio $$h^2: a b=$$

A
$$15: 16$$
B
$$5: 3$$
C
$$3: 5$$
D
$$16: 15$$
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+2
-0

For all real $$x$$, the minimum value of the function $$f(x)=\frac{1-x+x^2}{1+x+x^2}$$ is

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

$$\int \frac{d x}{\cos x \sqrt{\cos 2 x}}=$$

A
$$\sin ^{-1}(\tan x)+c$$
B
$$\frac{1}{2} \log \left|\tan \left(\frac{\pi}{4}+x\right)\right|+c$$
C
$$2 \log \left|\frac{1+\tan x}{1-\tan x}\right|+c$$
D
$$\frac{1}{2} \log \left|\frac{1-\tan x}{1+\tan x}\right|+c$$
4
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+2
-0

If the function defined by $$f(x)=K(x-x^2)$$ if $$0 < x < 1=0$$, otherwise is the p.d.f. of a r.v.X, then the value of $$P\left(X<\frac{1}{2}\right)$$ is

A
$$ \frac{1}{2} $$
B
$$ \frac{1}{3} $$
C
$$ \frac{1}{4} $$
D
$$ \frac{2}{3} $$
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