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MATRICES — MATHS STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceMATHSMATRICES1 Mark
Question
If a matrix P has 8 elements then how many different values the order of the matrix can take?
  1. 3
  2. 4
  3. 8
  4. 6
✓

Answer

  1. 4
Solution:
A matrix of mm rows and n columns has m × n elements.
8 can be got by all combinations of  1 × 8, 8 × 1, 2 × 4, 4 × 2
Hence, there are 4 possible matrices which have 8 elements.

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