Mathēmatica

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Across
  1. 5. The maximum number of equivalence relations on the set A = {1, 2, 3} are
  2. 6. Can you find the next number in the matchsticks number series below : 89537
  3. 7. lines in space which are neither parallel nor intersecting .
  4. 8. If 1 + 9 + 11 = 1, Then what is the value of 12 + 11 + 9= ?
  5. 9. sin[п/3 - sin-"(-½)] is equal to:
  6. 10. Find the value of a-b .if la | = 10, l b | = 2 and la x b | = 16.
  7. 11. Consider, A=1,B=2,C=3… Z=26 .Based on above code, Find the famous 11 letter word whose digit is equal to 51
  8. 12. A polyhedron that has 2 parallel, congruent bases; the lateral faces are parallelogram
Down
  1. 1. Can you solve the below trick equation? 60÷2(10+5) = ?
  2. 2. If A is a skew-symmetric matrix, then A^2 is a __ matrix
  3. 3. Total number of possible matrices of order 3 × 3 with each entry 2 or 0 is
  4. 4. 1f 1 = 02, 2 = 10 ,3 = 30 ,4 = 68 Then 5 = ?