1
JEE Main 2022 (Online) 26th July Evening Shift
+4
-1

Let $$\mathrm{P}$$ and $$\mathrm{Q}$$ be any points on the curves $$(x-1)^{2}+(y+1)^{2}=1$$ and $$y=x^{2}$$, respectively. The distance between $$P$$ and $$Q$$ is minimum for some value of the abscissa of $$P$$ in the interval :

A
$$\left(0, \frac{1}{4}\right)$$
B
$$\left(\frac{1}{2}, \frac{3}{4}\right)$$
C
$$\left(\frac{1}{4}, \frac{1}{2}\right)$$
D
$$\left(\frac{3}{4}, 1\right)$$
2
JEE Main 2022 (Online) 26th July Evening Shift
+4
-1
Out of Syllabus

The equation of a common tangent to the parabolas $$y=x^{2}$$ and $$y=-(x-2)^{2}$$ is

A
$$y=4(x-2)$$
B
$$y=4(x-1)$$
C
$$y=4(x+1)$$
D
$$y=4(x+2)$$
3
JEE Main 2022 (Online) 25th July Evening Shift
+4
-1
Out of Syllabus

The tangents at the points $$A(1,3)$$ and $$B(1,-1)$$ on the parabola $$y^{2}-2 x-2 y=1$$ meet at the point $$P$$. Then the area (in unit $${ }^{2}$$ ) of the triangle $$P A B$$ is :

A
4
B
6
C
7
D
8
4
JEE Main 2022 (Online) 29th June Evening Shift
+4
-1
Out of Syllabus

Let P : y2 = 4ax, a > 0 be a parabola with focus S. Let the tangents to the parabola P make an angle of $${\pi \over 4}$$ with the line y = 3x + 5 touch the parabola P at A and B. Then the value of a for which A, B and S are collinear is :

A
8 only
B
2 only
C
$${1 \over 4}$$ only
D
any a > 0
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