Higher Math 1st Paper MCQ-Rajshahi Board-2017

1. If $\vec{r}$ is the position vector of the point ($4,3,0)$, then-

i. $\vec{r}=4 \hat{i}-3 \hat{\mathbf{j}}$

ii. $|\vec{r}|=5$

iii. $\overrightarrow{\mathbf{r}}$ is perpendicular to z-axis.

Which one of the following is correct?

2. If the order of the matrices $A$ and $B$ are $4 \times 5$ and $5 \times 4$ respectively then the order of the matrix $A B$ is-

3. If $y=e^{\sqrt{x}}$ then $y_{1}=$ ?

4. What is the equation of the circle?

5. How many different arrangements can be made of all the letters of the word 'SESIP'?