Higher Math 1st Paper MCQ-Cumilla Board-2021

1. What is the value of, $\int_{0}^{1} \frac{\sin ^{-1} x}{\sqrt{1-x^{2}}} d x$ ?

2. If $y=\sin 2 x$ then

i. $y_{1}=2 \cos 2 x$

ii. $y_{2}+4 y=0$

iii. $y_{3}-4 y_{1}=0$

Which one of the following is correct?

3. Which of the following is a skew symmetric matrix?

4. What is the value of $\lim _{x \rightarrow 0} \frac{\sqrt{1-\cos 2 x}}{x}$ ?

5. If the slope of a straight line is $\frac{2}{3}$ and its length of intercept from $y$-axis is $\mathbf{- 5}$, Then the equation of the straight line is -