Higher Math 1st Paper MCQ-Cumilla Board-2019

1. If $m=1$ and $n=-1$ then which one is the graph of $y=m e^{n x}$

2. If $P=\left[\begin{array}{llll}1 & 2 & 3 & 4 \\ 2 & 3 & 4 & 5\end{array}\right]$ and $Q=\left[\begin{array}{l}1 \\ 2 \\ 3 \\ 4\end{array}\right]$ then which one of the following is the order of $\mathrm{PQ}$ ?

3. Which one of the following graph is function?

4. Which one is the centre of the circle $3 x^{2}$ $+3 y^{2}+9 x-12 y+18=0 ?$

5. If $\cot x=\frac{5}{4}$ and $\pi<x<\frac{3\pi}{2}$ then what is the value of $\sin x?$