Find-number-of-skew-symmetric-matrices-of-order-3-3-in-which-all-non-diagonal-elements-are-different-and-belong-to-the-set-9-8-7-7-8-9-

Question Number 180855 by srikanth2684 last updated on 18/Nov/22

F i n d n u m b e r o f s k e w s y m m e t r i c

m a t r i c e s o f o r d e r 3 \times 3 i n w h i c h

a l l n o n d i a g o n a l e l e m e n t s a r e

d i f f e r e n t a n d b e l o n g t o t h e

s e t {- 9, - 8, - 7, \dots, 7, 8, 9} .