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| How can I Insert this expression in mathematicaas shown in the photo? |
| I need your help please |
| How can I find The sumation Of:2s+t where: (s) is go from 1 to 10 ,,, And ( t) is go from 1 to 10 . And there is another condition {(s) dosn't equal to (t+1)} I am looking eorward to recieve the soluation ..Thank you, |