1
MHT CET 2021 20th September Evening Shift
+2
-0

The x-intercept of a line passing through the points $$\left(\frac{-1}{2}, 1\right)$$ and (1, 2) is :

A
$$-1$$
B
$$-2$$
C
1
D
3
2
MHT CET 2021 20th September Evening Shift
+2
-0

If the equation $$3x^2-kxy-3y^2=0$$ represents the bisectors of angles between the lines $$x^2-3xy-4y^2=0$$, then value of k is

A
$$-6$$
B
$$-10$$
C
6
D
10
3
MHT CET 2021 20th September Evening Shift
+2
-0

The joint equation of pair of lines through the origin and making an equilateral triangle with the line $$y=3$$ is

A
$$x^2+3 y^2=0$$
B
$$3 x^2-y^2=0$$
C
$$x^2-3 y^2=0$$
D
$$3 x^2+y^2=0$$
4
MHT CET 2021 20th September Morning Shift
+2
-0

If the acute angle between the lines given by $$\mathrm{a x^2+2 h x y+b y^2=0}$$ is $$\frac{\pi}{4}$$, then $$\mathrm{4 h^2=}$$

A
$$(a+2 b)(a+3 b)$$
B
$$a^2+4 a b+b^2$$
C
$$a^2+6 a b+b^2$$
D
$$(a-2 b)(2 a+b)$$
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