WT Cheng's answer to Koyuki Sky's Secondary 4 E Maths Singapore question.
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Hi Bi Jun,
(i) since A&B are identical 3x5 matrices, you just need to do the normal subtraction as shown in the first row. You may proceed to do so for the next 2 rows.
(ii) The matrix in (i) shows the number of books sold between 1 December & 1 January.
(i) since A&B are identical 3x5 matrices, you just need to do the normal subtraction as shown in the first row. You may proceed to do so for the next 2 rows.
(ii) The matrix in (i) shows the number of books sold between 1 December & 1 January.
Date Posted:
3 years ago
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