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a fost răspuns

1 1 1 1
_ + _ +_+.......+_ <1
25 26 27 49

Răspuns :

Renatemambouko
1/25+1/26+1/27+1/49≤1
1/25
1/26<1/25
1/27<1/25
1/49<1/25
1/25+1/26+1/27+1/49≤4×1/25
1/25+1/26+1/27+1/49≤4/25       4/25<1
⇒            
1/25+1/26+1/27+1/49≤1

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