Higher Math 1st Paper MCQ-Barishal Board-2022

$\sin (A-B)$

$\sin (B-A)$

$\cos (\mathbf{A}-\mathbf{B})$

0

$\left[\begin{array}{cc}2 & 5 \\ -7 & -8\end{array}\right]$

$\left[\begin{array}{ll}-2 & 5 \\ -7 & 8\end{array}\right]$

$\left[\begin{array}{cc}8 & 7 \\ -5 & 2\end{array}\right]$

$\left[\begin{array}{cc}2 & 5 \\ -7 & 8\end{array}\right]$

$\frac{\pi}{3}$

$\frac{2 \pi}{3}$

$\frac{\pi}{6}$

$\frac{5 \pi}{6}$

$-9 x^{-8}+C$

$-9 x^{-10}+C$

$-\frac{1}{10} x^{-10}+C$

$-\frac{x^{-8}}{8}+C$

$4 x-3 y=0$

$4 x+3 y=0$

$3 x+4 y=0$

$3 x-4 y=0$