Mathematics · Probability
Matrices of order 3 × 3 are formed by using elements from the set A = {-3, -2, -1, 0, 1, 2, 3}. Find the probability that a randomly selected matrix from these is either symmetric or skew-symmetric.
- 1176 + 173
- 2179 + 173 - 176
- 3173 + 179
- 4173 + 176 - 179✓
Correct answer
173 + 176 - 179
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