Higher Math 2nd Paper MCQ-Mymensingh Board-2021

1. The quadratic equation with root 1 $-\sqrt{-1}$ is -

2. If $u$ and a are constant, then the graph of $v^{2}=u^{2}+2$ as will be -

3. The equation of the latus rectum of the parabola $(x-3)^{2}=-4(y-4)$ is -

4. For which values of $k$ are the roots of the equation $x^{2}+(2 k+4) x+8 k+$ $1=0$ equal?

5. If $\sqrt{37} \mathrm{~N}$ be the resultant of forces $3 N$ and $4 N$ acting at an angle $2 a$, then the angle between the forces is -