Rearrange the following parts to form a meaningful and grammatically correct sentence: P. the teacher explained the lesson clearly Q. so that every student could understand it R. during the online class yesterday S. with examples and illustrations
Rearrange the following parts to form a meaningful and grammatically correct sentence: P. that maintaining a positive attitude Q. even in difficult situations R. is essential for success S. and helps overcome obstacles effectively
Match List-I with List-II
Choose the correct answer from the options given below:
If $\begin{bmatrix} 2 & 3 \\ 5 & 7 \end{bmatrix} \begin{bmatrix} 1 & -3 \\ -2 & 4 \end{bmatrix} = \begin{bmatrix} -4 & 6 \\ -9 & x \end{bmatrix}$, then the value of $x$ is: