1
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The acute angle between the pair of tangents drawn to the ellipse $$2 x^{2}+3 y^{2}=5$$ from the point $$(1,3)$$ is :

A
$$\tan ^{-1}\left(\frac{16}{7 \sqrt{5}}\right)$$
B
$$\tan ^{-1}\left(\frac{24}{7 \sqrt{5}}\right)$$
C
$$\tan ^{-1}\left(\frac{32}{7 \sqrt{5}}\right)$$
D
$$\tan ^{-1}\left(\frac{3+8 \sqrt{5}}{35}\right)$$
2
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

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) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Let the abscissae of the two points $$P$$ and $$Q$$ on a circle be the roots of $$x^{2}-4 x-6=0$$ and the ordinates of $$\mathrm{P}$$ and $$\mathrm{Q}$$ be the roots of $$y^{2}+2 y-7=0$$. If $$\mathrm{PQ}$$ is a diameter of the circle $$x^{2}+y^{2}+2 a x+2 b y+c=0$$, then the value of $$(a+b-c)$$ is _____________.

A
12
B
13
C
14
D
16
4
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

If the line $$x-1=0$$ is a directrix of the hyperbola $$k x^{2}-y^{2}=6$$, then the hyperbola passes through the point :

A
$$(-2 \sqrt{5}, 6)$$
B
$$(-\sqrt{5}, 3)$$
C
$$(\sqrt{5},-2)$$
D
$$(2 \sqrt{5}, 3 \sqrt{6})$$
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