Math topic中文

Scalar product

product of a scalar quantity and a matrix

Practice questions

  1. 1On every weekday, a bakery delivers chicken pies and apple pies to four cafes. On every weekend, it delivers double the…
  2. 2Given that (9230)(1−2y)=(x2x−7)\displaystyle\begin{pmatrix}9 & 2\\[4pt]3 & 0\end{pmatrix}\begin{pmatrix}1\\[4pt]-2y\end{pmatrix}=\begin{pmatrix}x\\[4pt]2x-7\end{pmatrix}…
  3. 3Hand sanitisers, hand wash and wipes were sold in two pharmacies. The matrix P shows the number of items available for s…
  4. 4An enrichment centre offers drama, writing and speech enrichment classes on weekdays during the school holiday. The matr…
  5. 5设 A=(1234)A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}，求 AA 的行列式 ∣A∣|A| 和逆矩阵 A−1A^{-1}。
  6. 6A tour agency records the total number of people buying tour packages to Thailand and Vietnam in the months of November…
  7. 7Mrs Teo is a Mathematics tutor. She offers tutorial sessions for Lower Secondary and Upper Secondary students on weekday…