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NDA 2021
Exam
NDA
Year
2021
Subject
Mathematics
Chapter
Matrices

NDA 2021 · Mathematics · Matrices

How many distinct matrices exist with all four entries taken from \...

How many distinct matrices exist with all four entries taken from {1,2}\{1,2\} ?

Options

  1. A16
  2. B24
  3. C32
  4. D48

Correct answer

A. 16

Step-by-step solution

Number of matrices exist with all four entries taken from (1,2)=2×2×2×2=16(1,2)=2 \times 2 \times 2 \times 2=16.
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